Two unknown compounds are tested. Compound contains 15.0 g of hydrogen anc
120.0 g of oxygen. Compound II contains 2.0 g of hydrogen and 32.0 g of oxygen.
Are the compounds the same?

Answers

Answer 1

The both compounds are different because their percentage compositions are different.

In order to confirm  that weather both compounds are same or not we will check the mole ratio. If it is same the compounds will be same otherwise not..

Given that,

For compound 1,

Mass of hydrogen given as 15 g

Mass of oxygen given as120 g

Moles of hydrogen and oxygen are to be determined

Number of moles of hydrogen = 15 g/ 1g/mol = 15 mol

Number of moles of oxygen = 120 g/ 16 g/mol = 7.5 mol

Total no of moles = 22.5 mol

Percentage of hydrogen = 15 /22.5 × 100 = 66.7%

Percentage of oxygen = 7.5 / 22.5× 100 = 33.3%

For  the compound 2,

Mass of hydrogen is 2 g

Mass of oxygen is 32 g

Moles of hydrogen and oxygen = ?

No of moles of hydrogen = 2 g/ 1g/mol = 2 mol

No of moles of oxygen = 32 g/ 16 g/mol = 2 mol

Total number of moles = 4 mol

Percentage of hydrogen = 2 /4 × 100 = 50%

Percentage of oxygen = 2 / 4× 100 = 50%

So, the both compounds will be different having different percentage compositions.

To know more about calculating percentage composition, please refer:

https://brainly.com/question/28357357

#SPJ1


Related Questions

How do you calculate the actual yield if the percent yield isn’t given, but only the theoretical yield is given?

Answers

The actual yield cannot be calculated if the only theoretical yield is given.

Percent yield can be computed by dividing actual yield by theoretical yield. So in order to compute the unknown value 2 known values are to be given.

So, to find the actual yield, the values of percent yield and theoretical yield is to be known. If these two values are known then, the actual yield could be computed by-product of theoretical yield and percent yield.

This could be mathematically given as,

Percent yield = Actual yield/Theoretical yield

Actual yield = Percent yield x Theoretical yield

Therefore, without the percent yield value, the value of the actual yield cannot be computed if the only theoretical yield is given.

To know more about, mass percentage, click below:

https://brainly.com/question/28709310

#SPJ1

1) Aluminum is...
a) An element composed of atoms.
b) An element of diatomic molecules.
c) An ionic compound.
d)A covalent compound (composed of molecules made
from more than one type of atom)

Answers

Answer:

   a) An element composed of atoms.

Explanation:

Ionic compounds are compounds composed of ions, charged particles that form when an atom. (or group of atoms) gains or loses electrons,There may or may not be more than one of each element. A diatomic compound (or diatomic molecule) contains two atoms, which may or may not be the same.

PLEASE GIVE BRAINLIEST THANK YOU!!!

Answer:

There may or may not be more than one of each element. A diatomic compound (or diatomic molecule) contains two atoms, which may or may not be the same.Ionic compounds are compounds composed of ions, charged particles that form when an atom. (or group of atoms) gains or loses electrons.

Explanation:

d)A covalent compound (composed of molecules made

from more than one type of atom)

If you forgot to add the primers to your pcr reaction, what would happen and why?.

Answers

Learn PCR reaction and primer.

What is PCR?

A specific DNA segment can be quickly multiplied (amplified) into millions or billions of copies using the polymerase chain reaction, also known as PCR, so that it can be further examined in the lab.

What is primer?

A substance used as a primer coat on previously unpainted wood, metal, or canvas, especially to stop the absorption of additional layers of paint or the growth of rust.

Taq polymerase cannot add bases in the absence of a small amount of DNA, so your reaction would not succeed. Because there wouldn't be an enzyme that could add new nucleotide bases, your reaction would fail.

Therefore, your reaction would not succeed. Because there wouldn't be an enzyme that could add new nucleotide bases, your reaction would fail.

Learn more about PCR reaction from the given link.

https://brainly.com/question/11417541

#SPJ4

If you have 2 moles of iron chloride (fecl3) and dissolve it in water to a final volume of 1l of water, what is the molarity and osmolarity of the solution?.

Answers

What is molarity?

Molarity is defined as the number of moles of solute per liter of solution.

M = n / V

where

n = no of moles ( 2 mol)

M = Molarity ?

V = volume of solution ( 1 itre)

M = n / V

  = 2 mol / 1 litre

  = 2 mol/L

What is Osmolarity?

It is a process of measurement of solute concentration. It is number of osmoles (Osm) of solute per litre (L) of solution (osmol/L or Osm/L).It  is usually written as Osm/L. This resultant number is of higher importance as it allows measurement of the osmotic pressure of a solution and determination of how the solvent will diffuse across a semi-permeable membrane separating two solutions of different osmotic concentration.

Osmolarity =  Molarity × number of particles of dissociation (n)

For ex: Sodium chloride(NaCl) in water dissociates into two particles (Na+ and Cl–) and Magnesium chloride (MgCl2) in water dissociates into 3 particles (Mg++ and 2 Cl–)

according to question, FeCl₃ = 1 Fe + 3Cl ,  where n = 4

Osmolarity = molarity × n

                  = 2 ×4

                  = 8 osmol / L

Learn more about Osmolarity at https://brainly.com/question/7498493

#SPJ4

Combusting an unknown hydrocarbon produces 5 mol co₂ and 6 mol h₂o. What is the empirical formula of the hydrocarbon?.

Answers

C5H12 is the empirical formula of the hydrocarbon .

What are Hydrocarbons ?

Hydrocarbons are type of organic chemical compounds composed only of the elements carbon (C) and hydrogen (H). Carbon atoms bond to form the skeleton of a compound, and hydrogen atoms bond to it in various configurations. Hydrocarbons are the components of oil and natural gas. They are used not only as fuels and lubricants, but also as raw materials for plastics, textiles, rubber, solvents, explosives and industrial chemicals.

Many hydrocarbons exist in nature. Not only do they form fossil fuels, they are also present in trees and plants. For example, it exists in the form of pigments called carotenes found in carrots and green leaves.More than 98% of raw natural rubber is a hydrocarbon polymer, a chain-like molecule with many units attached. The structure and chemical properties of individual hydrocarbons are highly dependent on the type of chemical bond that connects the constituent atoms.

To learn more about Hydrocarbons , click the link below ;

https://brainly.com/question/3551546

#SPJ4

What is the oxidation state argon

Answers

Answer: Possible oxidation states are 0.

If metals and non-metals make bonds and non-metals and non-metals make bonds, can metals and metals do the same? How?

Answers

Yes,  metals and metals make bonds with one another forming a new substance.

Can metal and metal bond with one another?

Metallic bonds occur between metal atoms whereas ionic bonds combine metals with non-metals. The metallic bonding joins metal atoms with each other. A sheet of aluminum foil and a copper wire are fused with the help of metallic bonding.

Metallic bonding is mostly non-polar because in alloys there is less difference among the electronegativities of the atoms that contribute to the bonding interaction of the two metals. Thus, metallic bonding is an extremely delocalized form of covalent bonding. Metals can make a bond with each other on macroscopic level as well as on a molecular level. The pieces of metal are held together with the help of metallic bonding.

So we can conclude that metals and metals do the same as metals and non-metals.

Learn more about metal here: https://brainly.com/question/4701542

#SPJ1

3. Hydrogen fuel cells are used on the space shuttle. These cells run on hydrogen ions,
hydrogen gas and oxygen gas.
a) Write two most likely half reactions, and net reaction that will take place in the hydrogen
fuel cell.
b) Calculate the electric potential difference for this reaction. (show all work)

Answers

Fuel cell automobiles use hydrogen gas to electricity an electric powered motor. Unlike traditional automobiles which run on gas or diesel, gas cell motors and vehicles integrate hydrogen and oxygen to supply electricity, which runs a motor.

The gas cell electricity plants generate warmth and water as by-merchandise of electrical electricity generation. The extra warmth is directed to gas cell warmth exchangers, in which the extra warmth is rejected to Freon coolant loops. The water is directed to the potable water garage subsystem.

Liquid Hydrogen (LH2) Rocket Fuel.

The Saturn rockets used it for his or her secondary degree engines. Later the NASA area commute could use it to electricity its 3 most important rocket engines. Liquid hydrogen gas has many benefits, consisting of its low molecular weight and excessive power output whilst burned collectively with liquid oxygen.

Learn more about hydrogen cell here https://brainly.com/question/13603874

#SPJ1

an element e has the electron configuration [kr] 5s24d105p3. the formula for the hydride of e is most likely

Answers

The formula oh Hydride of of antimony is H3Sb.

Hydrides is the hydrogen anion with the the formula H-.It is the binary compound of the hydrogen with other elements .In this Hydrogen is covalently bonded. this is bonded to a less electronegative element. This only exists in extrema  condition. This consist of two electrons and a proton. Electronic configuration of hydride is 1S2.

[Kr]5s24d105p3 is antimony.

The formula of hydride in antimony is SbH3.This is a colorless gas and it is highly toxic. This is the main covalent hydride of antimony. This is also known as antimony hydride or hydrogen antimonite. This is the binary compound of Hydrogen with antimony.

To learn more about Hydrides of Antimony please visit:

https://brainly.com/question/13065375

#SPJ4

Ionic compounds that use neon

Answers

An ionic compound that uses neon is that neon does not easily form ionic compound because neon belongs to noble gases and they are extremely stable and their reactivity is practically nil.

Neon is belongs to group 18 which is noble gases. noble gases have 8 valence electron in the outer most shell and that follow the octet rule. noble gases are extremely stable in the periodic table. so, they are very less reactive or we can say that non reactive gases.

Thus, An ionic compound that uses neon is that neon does not easily form ionic compound because neon belongs to noble gases and they are extremely stable and their reactivity is practically nil.

To learn more about neon here

https://brainly.com/question/26410214

#SPJ1

solid aluminum and oxygengas react to form solid aluminum oxide. suppose you have 7.0 mol of al and 11.0 mol of o2 in a reactor. calculate the largest amount of that could be produced. round your answer to the nearest .

Answers

The largest amount of Al₂O₃ produced from the reaction is 3.5 moles

What are limiting reactants?

A reactant that is completely consumed at the end of a chemical reaction is known as the limiting reagent. This reagent regulates the amount of product produced because the reaction cannot proceed without it.

Finding the limiting reactant,

4Al + 3O₂ —> 2Al₂O₃

From the balanced equation above,

4 moles of Al reacted with 3 moles of O₂.

Therefore,

7 moles of Al will react with = (7 × 3)/4 = 5.25 moles of O₂

From above, only 5.25 moles of O₂ out of 11 moles given, is needed to completely react with 7 moles of Al.

Therefore, Al is the limiting reactant and O₂ is the excess reactant.

Now, the largest amount of Al₂O₃ produced from the reaction. This can be obtained by using the limiting reactant as shown below

From the balanced equation above,

4 moles of Al reacted to produce 2 moles of Al₂O₃.

Therefore,

7 moles of Al will react to produce = (7 × 2)/4 = 3.5 moles of Al₂O₃.

Thus, the largest amount of Al₂O₃ produced from the reaction is 3.5 moles

To learn more about limiting reactants follow the link:

brainly.com/question/15230635

#SPJ4

if 100. ml of 0.100 m na2so4 is added to 200. ml of 0.150 m nabr, what is the concentration of na ions in the final solution? assume that the volumes are additive.

Answers

The concentration of sodium ion in the final solution containing 100 ml of 0.100 m Na₂SO₄ and 200 ml of 0.150 m NaBr is 0.167 M.

The concentration of Na₂SO₄ is given as 0.100 M. So it is clear that 0.100 mol of Na₂SO₄ is present in 1 L of solution.

One mole of Na₂SO₄ contains 2 moles of Na⁺ ions and one mole of SO₄²⁻ ion.

Therefore, the concentration of  Na⁺ ion can be calculated as follows:

Concentration of  Na⁺ ions (M₁) = 2×0.100 M

                                                   = 0.2 M

Volume of Na₂SO₄ (V₁) = 100 mL

Similarly, 0.150 M NaBr is taken, which implies that 0.150 moles of NaBr are present in 1 L of solution.

One mole of NaBr contains 1 mole of Na⁺ ions and one mole of Cl⁻ ion.

Therefore, the concentration of Na⁺ ion (M₂) = 0.150 M

Volume of NaCl (V₂) = 200 mL

It is known that, M₁V₁ + M₂V₂ = MV

Where V is the total volume of solution, that is 100 mL+200 mL = 300 mL and M is the concentration of Na⁺ ion in the final solution. Equating values of M₁, V₁, M₂, and V₂ in the above equation is as follows:

0.2 M×100 mL +0.150 M×200 mL = M×300 mL

⇒M=0.2 M × 100 mL + 0.150 M × 200 mL/ 300 mL

⇒M= 0.1666 M

⇒M=0.167 M

Hence, the concentration of Na⁺ ion in the final solution is 0.167 M.

Learn more about concentration of sodium ions in the final solution from the link given below.

https://brainly.com/question/20293172

#SPJ4

What is the boiling point of a solution that contains 1.00 kg of water and each of the following quantities of solute? (a) 3.98 moles of glucose (a molecular °C compound) (b) 3.04 moles of lactose (a molecular °C compound) (C) 2.77 moles of NaCl (an ionic °C compound) (d) 4.20 moles of Na3PO4 (an ionic °C compound)

Answers

102.037 °c  is the boiling point of a solution that contains 1.00 kg of water .

Solution ∆Tb = 1 ×  given problem is based on colligative property elevation in boiling point

∆Tb = ikbm 

I is vanthoff factor

kB is boiling constant for solvent = 0.512 °c kg /mol 

m is molality = number of moles of solute ÷ mass of solvent (kg) 

Tb is elevation in boiling point

For water boiling point is 100 °c 

So the new temperature will be ( 100 °c + Tb )

A) ∆Tb = 1 × 0.512 × ( 3.98 ÷1) = 2.037°c 

Temperature of of compound is 102.037 °c 

B)∆Tb = 1 × 0.512 × ( 3.04 ÷1) = 1.55°c 

Temperature of compound is 101.55 °c 

C) ∆Tb = 2 × 0.512 × ( 2.77÷1) = 2.8 °c 

Temperature of compound is 102.8 °c 

D) ∆Tb = 4 × 0.512 × ( 4.20 ÷1) = 8.6°c 

Temperature of compound is 108.6 °c 

osmotic pressure = molarity × gas constant × temperature × vanthoff factor

For KCl & NaBr vanthoff factor is 2 .

At same temperature , 

Osmotic pressure of KCl / osmotic pressure of NaBr = molarity of KCl / molarity of NaBr = 0.25M /0.2 M = 1.25 

Ratio to be find out is 1.25 .

To know more about boiling point visit : https://brainly.com/question/2153588

#SPJ4

polypeptides are continuously being formed and degraded. one of these processes is shown. the figure presents the molecular structures of polypeptides. a molecule at the top of the figure has a backbone with six repeats of the following atoms: n, c, c. one r group, of the range r 1 through r 6, is bonded with the first c of each the n, c, c repeats. an arrow that is joined by another arrow labeled h 2 o points to two shorter molecules, each with only three repeats of the atoms: n, c, c. one of the shorter molecules has r groups r 1, r 2, and r 3. the other molecule has r groups r 4, r 5, and r 6. figure 1. polypeptide reaction which statement is the most accurate description of the reaction shown in figure 1?

Answers

It represents a polypeptide chain that is broken down through a hydrolysis reaction.

The backbone of DNA contains deoxyribose while the backbone of RNA contains ribose. A covalent bond is formed between the carbon and nitrogen atoms to form H2OH2O. The hydrophilic phosphate groups of phospholipid molecules are attracted to the aqueous internal and external environment.

The shape and charge of the substrate match the active site of the enzyme. Because the substitution reduced the mass of the enzyme, the mutant enzyme bound the substrate more weakly than the normal enzyme. There is no visible effect on the structure of the CFTR protein. It leads to the synthesis of proteins that aid in cell replication. DNA is usually double-stranded, with both strands oriented parallel, whereas RNA is usually single-stranded.

Learn more about Polypeptides here:-https://brainly.com/question/1542336

#SPJ4

Disclaimer:- Your question is incomplete,please see below for the complete question.

polypeptides are continuously being formed and degraded. one of these processes is shown. the figure presents the molecular structures of polypeptides. a molecule at the top of the figure has a backbone with six repeats of the following atoms: n, c, c. one r group, of the range r 1 through r 6, is bonded with the first c of each the n, c, c repeats. an arrow that is joined by another arrow labeled h 2 o points to two shorter molecules, each with only three repeats of the atoms: n, c, c. one of the shorter molecules has r groups r 1, r 2, and r 3. the other molecule has r groups r 4, r 5, and r 6. figure 1. polypeptide reaction which statement is the most accurate description of the reaction shown in figure.

A piece of iron (specific heat, 0.444 J/g•°C) is added to 109.92 grams of water (specific heat, 4.184 J/g•°C) in a calorimeter. The water was initially at a temperature of 26.3°C and the iron was initially at 125°C. If the final temperature of the system is 34.9°C, what is the mass of the iron

Answers

The mass of the piece of iron is 98.87grams.

How to calculate mass in a calorimetry procedure?

Calorimetry is the science of measuring the heat absorbed or evolved during the course of a chemical reaction or change of state.

The calorimetry equation to evaluate the energy required or released is as follows:

Q = mc∆T

Where;

Q = amount of energy in Joulesm = mass (g)c = specific heat capacity∆T = change in temperature

However, since two materials are involved, the following applies;

mc∆T (water) = - {mc∆T} (metal)

109.92 × 4.184 × (34.9 - 26.3) = - {m × 0.444 × (34.9 - 125)}

3,955.18541 = 40.0044m

m = 98.87grams.

Therefore, 98.87 grams is the mass of the iron metal.

Learn more about calorimetry at: https://brainly.com/question/2566525

#SPJ1

can an exothermic process be non-spontaneous? group of answer choices no, because entropy increases in the surroundings no, because exothermic processes are always spontaneous it depends on the temperature yes, if entropy of the system decreases sufficiently

Answers

The exothermic process be non-spontaneous.

What is exothermic process?

Exothermic reactions are those in which energy is released chemically as heat or light. The chemical equation for these reactions, which are the opposite of endothermic reactions, is as follows: Products plus energy equals reactants.

What is entropy?

Entropy can be defined in terms of the statistical probabilities of a system or in terms of the other thermodynamic quantities and is simply a measure of how much the energy of atoms and molecules spreads out during a process.

Therefore, the G = H-TS equation illustrates how a high temperature and a negative entropy can cause an exothermic reaction to be non-spontaneous.

Learn more about exothermic process from the given link.

https://brainly.com/question/2924714

#SPJ4

A 2 L of hydrogen gas is filled in a rubber ball at 10 °C. Calculate the final volume of the gas, if the temperature increases to 80 °C.

Answers

The final volume of the hydrogen gas that is filled in a rubber ball at 10 °C is 2.495L.

How to calculate volume?

The volume of a gas can be calculated using the following Charles's law equation;

V₁/T₁ = V₂T₂

Where;

V₁ = initial volumeT₁ = initial temperatureV₂ = final volumeT₂ = final temperature

According to this question, 2L of hydrogen gas is filled in a rubber ball at 10 °C. The final volume of the gas, if the temperature increases to 80 °C is as follows:

2/283 = V/353

V = 2.495L

Therefore, 2.495L is the final volume of the hydrogen gas.

Learn more about volume at: https://brainly.com/question/24189159

#SPJ1

A rock rests on the ground. A force pulls the rock toward the earth, and another force pulls the rock toward the moon.

Why does the rock stay on the ground?

Answers

Answer:

Gravity

Explanation:

it is what hold people on the earth

Because of gravity the Rock stays on the ground

Sodium is not a product of the electrolysis of sodium chloride solution because it is more __________ than hydrogen. What word completes this sentence?

Answers

Sodium is not a product of the electrolysis of sodium chloride solution because it is more reactive than hydrogen.

What is electrolysis?

Electrolysis is the decomposition of a substance in a molten or solution form when a direct current is passed through it.

A substance in a molten state or a solution that allows electric current to pass through it is known as an electrolyte.

During electrolysis, the ions in the solution of molten gain or lose electrons to become discharged as neutral atoms.

The ability of ions to be discharged during electrolysis depends on the position of the ion in the electrochemical series as well as on the concentration of the ions. Reactive ions are not easily discharged during electrolysis.

Learn more about electrolysis at: https://brainly.com/question/12994141

#SPJ1

How many total ions would be present in the formula for indium fluoride?

Answers

The total ions which would be present in indium fluoride is +2

How indium fluoride has a total ions of +2

It follows that indium is an element which has an ion of +3 while fluorine has +1 ion. So therefore, adding these two ions together in the formula of this compund indium fluoride is given below:

+3 + (-1)

= +3 - 1

= +2

That being said, this indium fluoride has a number of properties. Some of it few properties are as follows:

It is a solid substance It is an inorganic compoundIt is whitish in appearanceIts chemical formula is written as InF3.

In conclusion, it can be deduced from the explanation above that indium fluoride is a compound.

Read more on ions:

https://brainly.com/question/22277121

#SPJ1

At STP, 5.6 liters of CH4 contains the same number of molecules as
1.4 L of oxygen
2.8 L of ammonia
5.6 L of hydrogen
11.2 L of neon

Answers

5.6 L of [tex]CH_{4}[/tex] contains the same number of molecules 5.6 L of [tex]H_{2}[/tex].

Define mole.

The mole is always the SI unit used to measure a substance's quantity.

Define molecules.

The smallest particle of a substance. It contains 2 or more atoms.

5.6 L of [tex]CH_{4}[/tex]:

No of moles=Given volume/molar volume

                    = [tex]5.6/22.4[/tex]

                    = [tex]0.25[/tex]

No of molecules=No of moles*Avagadro's number

                           = [tex]0.25*6.023*10^{23}[/tex]

                           = [tex]1.51*10^{23}[/tex]

5.6 L of [tex]H_{2}[/tex]:

No of moles=Given volume/molar volume

                     = [tex]5.6/22.4[/tex]

                     = [tex]0.25[/tex]

No of molecules = No of moles * Avagadro's number

                            = [tex]0.25*6.023*10^{23}[/tex]

                            = [tex]1.51*10^{23}[/tex]

Therefore, the answer is 5.6 L of [tex]H_{2}[/tex].

To learn more about Moles and molecules, the given link https://brainly.com/question/21911991.

#SPJ1

A 345. g sample of an unknown substance was heated from 45.0°C to 167.7°C. In the process, the substance absorbed 18.942 kJ of energy. What is the specific heat of the substance? Give your answer in both standard and scientific notation.
Was this an endothermic or exothermic process?

Answers

The specific heat capacity of the subtance of mass 345 g is 447.47 J/kgK. And the process is exothermic.

What is specific heat capacity?

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

To calculate the specific heat capacity of the susbtance, we use the formula below.

Formula:

c = Q/(mΔt)......... Equation 1

Where:

c = Specific heat capacity of the substancem = Mass of the substanceΔt = Change in temperature.Q = Quantity of heat

From the question,

Given:

m = 345 g = 0.345 kgΔt = (167.7-45) = 122.7 °CQ = 18.942 kJ = 18942 J

Substitute these values into equation 1

c = 18942/(122.7×0.345)c = 447.47 J/kgK.

Since the process absorb heat, it is endothermic.

Hence, the specific heat capacity of the subtance is 447.47 J/kgK. And the process is endothermic.

Learn more about specific heat capacity here: https://brainly.com/question/21406849

#SPJ1

How many protons for the si silicon atom

Answers

Answer:

Silicon has 14 protons in its atoms.

What mass of water is needed to prepare a 1.20 molal solution using 0.60 mol propyleneglycol?

Answers

To produce a 1.20 molarity solution with 0.60 mol propylene glycol, 0.5 kg volume of water is needed.

What exactly is polypropylene glycol and how does it work?

A synthetic liquid material that absorbs water is called propylene glycol. Additionally, polyester compounds and the foundation for deicing solutions are made with propylene glycol. When a leak could result in contact with food, the chemicals, food, and pharmaceutics utilize propylene glycol as an antifreeze.

Must you stay away from propylene glycol?

The majority of processed foods include propylene glycol in some amount. Despite its low toxicity, eating a lot of foods that contain it can have negative effects on your health. Avoiding goods that contain the chemical is the greatest defense. Instead

Briefing:

M: 1.20

moles: 0.60

Kg:?

(m)(kg)/(m)= 0.60/1.20= 0.5Kg

To know more about Propylene glycol visit:

https://brainly.com/question/3403311

#SPJ1

explain why the use of glycerol (1,2,3-propanetriol) in lotions helps retain water and keep the skin moist.

Answers

The use of glycerol in lotions helps retain water and keep the skin moist because it is hygroscopic compound

Hygroscopic compounds which are also known as water loving compounds, which are able to attract or hold the water from the environment, either through absorption or adsorption. Many react chemically with water such as metal hydrides or alkali metals.

One of the main application of these compounds was in absorption cycles that were used in the refrigerators.

In glycerol the presence of 3OH groups in it make is more hygroscopic in nature and therefore when we use glycerol's in the lotions, it helps retain the water in it because it now attracts water and hence keeps the skin moist.

To know more about  hygroscopic compound

https://brainly.com/question/13545535

#SPJ4

write the complete electron configuration for the common monatomic ion formed by the element rubidium , rb . this ion is a(n) with a charge of fill in the blank 3 .

Answers

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1  electron configuration for the common monatomic ion formed by the element rubidium , Rb.

The shape and energy of an atomic species' electrons may be understood by looking at its electron configuration, which is the accepted nomenclature for describing an atom's electronic structure, whether it be neutral or ionic. We allow each electron to occupy an orbital under the orbital approximation, which can be solved by a single wavefunction. By doing this, we are able to produce the identical three quantum numbers (n, l, and ml) that were produced when Schrodinger's equation for Bohr's hydrogen atom was solved.

The Aufbau Principle, Hund's Rule, and Pauli-Exclusion Principle are three broad guidelines for determining the electron configuration of an atomic species.

To know more about electron configuration visit : brainly.com/question/14283892

#SPJ4

Which of the samples shown contains a mixture?

Answers

Answer:

D.

Explanation:

The molecules shown are different, they are also not combined which means a mixture is shown.

Mixture is defined as when two or more than two components are mixed together. The samples shown contains a mixture is option D.

What is mixture ?

A substance made up of two or more separate chemical compounds that are not chemically linked is referred to as a mixture. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids.

A substance made up of two or more separate chemical compounds that are not chemically linked is referred to as a mixture. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids.

When two or more distinct substances physically join, a mixture is produced that can be dispersed back into its constituent parts.

Thus, option D is correct.

To learn more about the mixture, follow the link;

https://brainly.com/question/24898889

#SPJ2

A process that is approaching equilibrium will have a ______ δsuniv value.

Answers

A process that approaching equilibrium will have a constant universal value.

Equilibrium constant value is the ration of the concentration of the product over reactant. we can use the value of K to predict whether the reactant and product of the reaction are at equilibrium or not. When a reaction approach equilibrium both the forward and reverse reaction are occuing. At equilibrium, the foreward and reverse reaction are at the same rate. That means when the has reached a point where the concentration of the reactant and product remains unchanged with time. It is because both the reaction have same rate. The value of the equilibrium is the ratio of the concentration of the product over the reactant.

To learn more about Rate of reaction please visit:

https://brainly.com/question/12904152

#SPJ4

calculate the ph of a solution prepared by mixing 0.0750 mol of chloroacetic acid plus 0.0180 mol of sodium chloroacetate in 1.00 l of water.

Answers

When 0.0750 mol of chloroacetic acid and 0.0180 mol of sodium paients are combined with 1.00 l of water, the resulting solution has a pH of 2.373.

Chloroacetic is why?

Stronger than acetic acid CH3-COOH is chloroacetic acid Cl-CH2-COOH. Cl is a group that removes electrons. By dispersing negatively charged by an inductive effect and stabilising the acetate anion, it makes acetic acid more acidic.

Chloroacetic acid is more, why?

In chloroacetic acid, the Cl- ion has a -I effect that lowers the electron of the carboxylic group's O-H bond, whereas in acetic acid, the CH3 group has a +I impact that raises the O-H bond's electron density. Consequently, acetic acid is less acidic than chloroacetic acid.

To know more about Chloracetic visit:

https://brainly.com/question/14390202

#SPJ4

What would a student need to know in order to figure out a formula for compound containing a group 16 nonmetal?.

Answers

"Will group 16 elements gain electrons to bond with group 2 in an XY format in periodic table  would a student need to know in order to figure out a formula for compound containing a group 16 nonmetal.

From one side of the periodic table to the other, properties of elements within a period vary in a predictable manner. A horizontal row represents a period in the periodic table. The number of electron shells is the same for every atom in a row. Moving through a period causes elements to acquire electrons and protons and become less metallic. -Elements in the same period have the same number of electron shells.

As the atomic number rises, comparable features reoccur on a regular basis, which is reflected in this arrangement. From one side of the periodic table to the other, properties of elements within a blank shift in a predictable manner. those with comparable qualities are displayed in a column.

To know more about periodic table visit : brainly.com/question/11155928

#SPJ4

Other Questions
the most prevalent and efficient catabolic pathway for the production of atp, in which oxygen is consumed as a reactant along with the organic fuel. Gloria and carlos read many books. Gloria y carlos leo muchos libros. Gloria y carlos leen muchos libros. Gloria y carlos lee muchos libros. Gloria y carlos leemos muchos libros. Arrange the following numbers in increasing order (smallest first, biggest last):A = 2*1/2*4*1/6B = 12*128C = 1*8*1/5^2D = 4*(-1)/2*(-1)*8*(-1)E = 3*2^(1/2)*4*1/4 100 POINTSHOW MANY ANAPHASE, TELOPHASE, METAPHASE, PROPHASE, INTERPHASE CELLSARE THERE Explain in your own words the definitions of willful oppression 7j+58k when j = 0.5 and k = 0.25 The Hope diamond has been owned by many people over a long span of time. According to the legend in the article, how did the Hope Diamond begin its journey from person to person? THANK YOU AND PLEASE HURRYA. the french royal family bought the diamond.B. it mysteriously turned up in england and...a member of the weathly hope family purchased the gemC. it was stolen from the eye of a sacred statue in indiaD. pierre cartier purchased the hope diamond Which is NOT a reason that children do not tell about sexual abuse?A. They fear they will not be believed.B. They are threatened by the abuser.C. They think that they are being loved.D. They think it is their fault. How did the Tea Act, and the American response to it, contribute to the outbreak of warbetween Britain and its American colonies? Tickets to a basketball game can be ordered online for a set price per ticket plus a $5. 50 service fee. The total cost in dollars for ordering 5 tickets is $108. 0. Which linear function represents c, the total cost, when x tickets are ordered? c(x) = 5. 50 + 20. 50x c(x) = 5. 50x + 20. 50 c(x) = 5. 50 + 21. 60x c(x) = 5. 50x + 21. 60. ReviewSelect ALL the truestatements thatcorrectly describe theCivil War.Abraham Lincoln was President of the U.S. duringthe Civil War.In a civil war, the citizens of a nation fight against aforeign enemy.General Robert E. Lee fought for the Confederacy.The Civil War lasted from 1761 to 1765.The Union had a bigger population than theConfederacy.SUBM Type 2 diabetes disproportionately affects minority youth TRUE OR FALSEthis is an EXAM!! please i need the correct answer !! Please help!! Fahrenheit 451What effect does Guy's first interaction with Clarisse have on him? How does he react to her manyquestions throughout their conversation? Summarize what occurs at Convergent boundaries between two continental plates. be Specific in using the terms that apply. when using the automatic mileage method, which of the following expenses, if any, also can be claimed? a.engine tune-up. b.parking. c.interest on automobile loan. d.macrs depreciation. how do i do these?i'm having trouble figuring out which is x and which is y. In 6 years, a father wants to accumulate $110000 to pay for his daughter's college expenses. If he can get 8% interest, compounded quarterly, how much must he invest now to achieve his goal? the process of the blood flow as it enters the heart until it leaves the heart 150 words Your business paid $10,000 for a one year retainer to a law firm. How much should be expensed via worksheet adjustments each month?. What year was the celebration that is most commonly considered to be the first Thanksgiving?