How many grams are there in 9.6 x 1025 molecules of H2? Round your final answer to two decimal places.

How Many Grams Are There In 9.6 X 1025 Molecules Of H2? Round Your Final Answer To Two Decimal Places.

Answers

Answer 1

Answer:

there are 310.64 grams in 9.40×10²⁵ molecules of H₂.

Explanation:

Amount of moles of H₂= (9.6 × 10²⁵ atoms × 1 mole) ÷ 6.023 × 10²³ atoms

amount of moles of H₂ = 155.32 moles

On the other hand, molar mass is the amount of mass that a substance contains in one mole. In this case, the molar mass of H₂ is 2 .

Then the mass that 155.32 mole of compound contains is calculated as:

155.32 moles × 2 = 310.64 grams

Finally, there are 310.64 grams in 9.40×10²⁵ molecules of H₂.

Answer 2

Moles of H_2

[tex]\\ \rm\Rrightarrow \dfrac{No\:of\: molecules}{Avagadro\:no}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{9.6\times 10^{25}}{6.023\times 10^{23}}[/tex]

[tex]\\ \rm\Rrightarrow 1.594\times 10^{2}[/tex]

[tex]\\ \rm\Rrightarrow 159.39mol[/tex]

Mass

[tex]\\ \rm\Rrightarrow Moles\times molar\:mass[/tex]

[tex]\\ \rm\Rrightarrow 159.39(2)[/tex]

[tex]\\ \rm\Rrightarrow 318.78g[/tex]


Related Questions

The specific heat of aluminum is approximately
0.90 J/g °C. How much heat energy would be
required to raise the temperature of a 50 g
sample of aluminum from 20 °C to 100 °C?

Answers

Answer:

3600J

Explanation:

Q = mc∆T

= 50 x 0.9 x (100 - 20)

= 3600J

The electron configuration of an element is 1s^2 2s^2 2p^6. Describe what most likely happens when an atom of this element comes near an atom having seven valance electrons. (5 points)

Answers

Answer:

In some cases, they could bond to form covalent compounds. However, in most instances they will not interact.

Explanation:

Remember that elements desire to have a full octet (8 valence electrons). The configuration given represents an element with 8 valence electrons. I know this because the outermost shell (denoted by the 2 coefficient) has 8 electrons (2s²2p⁶ = 2 + 6 = 8). Therefore, this element is stable.

The other atom has 7 valence electrons. Since it is 1 electron away from having a full octet, it really wants 1 more electron. The original element is unlikely to give up an electron because that would prevent it from having a full octet. As such, when the atoms are close to one another, they will most likely not interact. The element with the full octet is most likely a noble gas, and these elements rarely form bonds. Noble gases can form bonds with halogens (elements with 7 valence electrons) but only if there are excess halogens and particular noble gases in the system.

The electron configuration of an element is 1s2 2s2 2p6 is Neon with atomic number 10. They either will form covalent bond with other element of does not from bond with any other element.

What is chemical bond?

Chemical bond is defined as any of the interactions that allow for the grouping of atoms into molecules, ions, crystals, and other stable species that make up ordinary substances.

It can also be defined as a connection between atoms in molecules or compounds, as well as between ions and molecules in crystals.

There are basically four types of chemical bond.

Covalent bondIonic bondMetallic bondMolecular bond

Thus, the electron configuration of an element is 1s2 2s2 2p6 is Neon with atomic number 10. They either will form covalent bond with other element of does not from bond with any other element.

To learn more about chemical bond, refer to the link below:

https://brainly.com/question/15444131

#SPJ2

A chemical reaction can be reversed if?

Question 18 options:

The energy of the products is less than the activation energy threshold.


The energy of the products exceeds the activation energy threshold.


The energy of the reactants exceeds the activation energy threshold.


The energy of the reactants is less than the activation energy threshold.

Answers

A chemical reaction can be reversed if the energy of the products exceeds the activation energy threshold.

What are reversible reactions?

Reversible reactions are reactions which can proceed in two directions.

In reversible reactions, reactants can form products and products can also break down to form reactants.

For a chemical reaction to be reversed, the original reaction conditions leading to formation of products are reversed.

Therefore, a chemical reaction can be reversed if the energy of the products exceeds the activation energy threshold.

Learn more about reversible reactions at: https://brainly.com/question/16614705

#SPJ1

ASAP PLS 100 POINTS Which statement best describes the role of oxygen in cellular respiration?
A. Oxygen molecules are a waste product of electron flow.
OB. Oxygen molecules form as ATP molecules are made.
OC. Oxygen molecules form as sugar molecules are broken down.
OD. Oxygen molecules are used to make water molecules.

Answers

It’s A .. I think I hope this helps !

Answer:

Option C

Explanation:

Oxygen molecules form as sugar molecules are broken down.

Sugar or carbohydrates are known as glucose or sucrose and malltose i.e C6H12O6 etc.

So they are broken down by cellular respiration and forms Oxygen for cells

Methane has a heat of fusion of 0.84 kJ/mol and a heat of vaporization of 9.2 kJ/mol. Estimate the value for the heat of sublimation.
9.00 kJ/mol
11.0 kJ/mol
8.00 kJ/mol
10.0 kJ/mol
12.0 kJ/mol

Answers

J   BIJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ

The parent element 42 19 K decays by beta decay. Which daughter element will
form?
O A. Ca
OB. 1 Ar
O C. C
OD. K

Answers

Answer: A

Explanation:

This means that the atomic number decreases by 1 but the mass remains constant, meaning the atomic number of the new element is 20. This corresponds to calcium.

For an atom electrons, how many energy sublevels are present in the principal energy level n = 4?

Answers

There are 4 energy sublevels are present in the principal energy level n = 4.

What is sublevels?

Sub-level is a type of level that is lower than another level or it is a part or component of a big level. S, p, d and f are the four energy levels in which electrons are present.

So we can conclude that 4 energy sublevels are present in the principal energy level n = 4.

Learn more about energy here: https://brainly.com/question/13881533

#SPJ1

The diameter of a hydrogen atom is 106 pm. Find the length in kilometers of a row of 4.34 x 1023 hydrogen atoms?

Answers

The length in kilometers of a row of 4.34 x 1023 hydrogen atoms is 4.34 x 10¹⁴ km.

Length of the entire hydrogen atoms

The length of the entire hydrogen atom is calculated as follows;

Length of the row = number x diameter of one

Length of the row = 4.34 x 10²³ x 10⁶ x 10⁻¹²

Length of the row = 4.34 x 10¹⁷ m

Length of the row = 4.34 x 10¹⁴ km

Thus, the length in kilometers of a row of 4.34 x 1023 hydrogen atoms is 4.34 x 10¹⁴ km.

Learn more about diameter of hydrogen atom here: https://brainly.com/question/13796082

#SPJ1

A scientist stores a very large number of particles in a container. In order to determine the number of particles, the scientist measures the temperature, pressure, and volume of the container and calculates the moles using the ideal gas law. In order for the calculated value to have the greatest accuracy, the scientist should make sure that (select all the apply)

A the temperature is high
B the volume is high
C the pressure is high
D the ideal gas law is always accurate, the conditions will not matter

Answers

When the temperature and the volume of the gas stored in the container are high then the number of the moles will be measured accurately. Thus, options A and B are correct.

What is the ideal gas law?

The ideal gas law is the establishment of the relation between the elements like the moles, pressure, temperature, and the volume of the gas containing the particle.

The ideal gas states:

PV = nRT

With an increase in the temperature, the number of particles that collides increases as the kinetic energy increases. The particle of the container is more when the volume of the gas is more.

Therefore, in options A and B high temperature and volume increase the accuracy.

Learn more about ideal gas here:

https://brainly.com/question/14552813

#SPJ1

You have now identified whether crabs are able to see plankton they eat near the ocean floor. Based on your answer, explain how this information can be used to help the Australian Institute of Marine Biology further to understand the environment of the ocean floor (what other organisms live at the bottom? How are these able to see their food/ attract food to survive?

Answers

They are able to find out more organisms which are present at the bottom of the sea due to their accomplishment.

How this information can be used to help to understand the environment of the ocean floor?

This information can be used to help the Australian Institute of Marine Biology further to understand the environment of the ocean floor because they are able to see the seas floor and can find out other creatures as well.

So we can conclude that they are able to find out more organisms which are present at the bottom of the sea due to their accomplishment.

Learn more about crabs here: https://brainly.com/question/1120881

#SPJ1

What types of intermolecular forces are important in controlling bio-molecular structure of proteins?
- H-bonding
- Van der Waals
- Dipole Dipole
- All of the above
- None of the above

Answers

Answer:

What types of intermolecular forces are important in controlling bio-molecular structure of proteins?

hydrogen bond

option a

H - bonding

hope it's helpful thanks

For addition and subtraction, round the result to match the measurement with the fewest decimal places. For example,

3.4 cm + 4.75 cm = 8.2 cm

because 3.4 cm is only measured to the nearest 0.1 centimeter.

Choose the answer with the correct number of significant digits.

4.6 cm + 2.35 cm =
cm

Answers

Answer:

7 cm

Explanation:

If the following digit is greater than or equal to 5, the decimal place is rounded up (moved up to the next number); if the following digit is less than 5, the decimal place stays the same.

4.6 + 2.35 = 6.95 cm

However, as stated in your question, cm is only being measured to the nearest 0.1 centimeters in your question.

So, you would round the digit 9 up by 1, meaning you would round it to 10. However, there are only nine digits available in our base-10 counting system, so you carry the value over,

6.95 cm could be rounded to '6. 100 cm', which is 7 cm.

what are ways in controlling soil applicable in your community​

Answers

Answer:

Some methods of controlling soil erosion.

1) Planting Vegetation. This method involves planting crops with deep roots that can hold the soil in place. ...

2)Contour Farming. ...

3)Applying Mulches. ...

4)Avoiding Overgrazing. ...

5)Reforestation. ...

6)Use Plastic Sheeting. ...

7)Applying Terraseeding Method

Which law states that at constant temperature the pressure of a given amount of gas is inversely proportional to the volume of the gas?
A.
Combined gas law
B.
Gay-Lussac’s law
C.
Charles’s law
D.
Boyle’s law
E.
Ideal gas law

Answers

Boyle’s law states that at constant temperature the pressure of a given amount of gas is inversely proportional to the volume of the gas. Hence, option D is correct.

What is Boyle’s law?

The volume of a gas at a constant temperature varies inversely with the pressure exerted on it.

Boyle's law states " The pressure of a gas is inversely proportional to the volume occupied by the gas when the temperature(in kelvins) is held constant ".

[tex]P[/tex] ∝ [tex]\frac{1}{V}[/tex]

[tex]PV =CONSTANT[/tex]

This means that with an increase in the volume of gas the pressure exerted by the gas decreases or vice versa. Here variables were pressure and volume.

[tex]P[/tex] ∝ [tex]\frac{1}{V}[/tex]

Boyle’s law states that at constant temperature the pressure of a given amount of gas is inversely proportional to the volume of the gas. Hence, option D is correct.

Learn more about the Boyle’s law here:

https://brainly.com/question/1437490

#SPJ1

URGENT!!! Based on the following reaction, how much water is produced when oxygen react with 1 mole of C₂H8?

C₂H8 (g) + 40₂ (g) →2CO2 (g) + 4H₂O(g)​

Answers

Answer:

4 moles

Explanation:

For every mole of deuteriomethane consumed, 4 moles of water are produced.

So, the answer is 4 moles

What bonds break in the combustion of butane?

Answers

Activation energy
This barrier is due to the fact that to make CO2 and H2O we have to break 4 carbon-hydrogen bonds and some oxygen-oxygen bonds.

Hope this helps!

What is known about a reaction with a positive enthalpy?
A. Heat is given off as a product of the reaction.
B. The reaction has a large activation energy.
OC. Heat is required to make the reaction occur.
OD. The reaction will never be spontaneous.

Answers

Answer: C

Explanation:

In endothermic reactions, enthalpy is positive, and in exothermic reactions, enthalpy is negative, So, if enthalpy is positive, then it is an endothermic reaction, and hence is required for the reaction to occur.

The reaction of a quantity of sulfur trioxide with water gives an acid with a volume of 2 l, containing 1.8 mol of the dissolved oxide.

a)Calculate the mass of ammonium sulfate that would be obtained by reacting with ammonia acid.

b)Calculate the CM of the solution with a volume of 100 ml of ammonia (aq) to be added for complete neutralization of the acid solution.​

Answers

Answer :]

A.)Calculate the mass of ammonium sulfate that would be obtained by reacting with ammonia acid.

Correct me if i'm wrong :]

Potassium fluoride has a solubility of 92 g of KF in 100. g of H₂0 at 18 °C. Determine if
each of the following mixtures forms an unsaturated or saturated solution at 18 C:

a. adding 24 g of KF to 25 g of H₂O


b. adding 47 g of KF to 50. g of H₂O


c. adding 127 g of KF to 150. g of H₂O

Answers

a) In 25 grams of water, the solubility is 92/4 = 23 grams, so adding 24 grams will produce a supersaturated solution.

b) In 50 grams of water, the solubility is 92/2 = 46 grams, so adding 47 grams will produce a supersaturated solution.

c) In 150 grams of water, the solubility is 92(1.5) = 138 grams, so adding 127 grams will produce an unsaturated solution.

True or False?
The same carbon atoms are used repeatedly on Earth.

Answers

Answer:

True

Explanation:

had the same question

Calculate the number of moles of hydrogen chloride produced from 10 moles
of hydrogen.
H₂(g) + Cl₂(g) → 2HCl(g)?

Answers

Answer:

20 moles HCl

Explanation:

To find the final answer, you need to use the mole-to-mole ratio (from the equation) to convert from moles H₂ to moles HCl. Make sure to arrange the ratios in a way that allows for the units of H₂ to cancel out.

1 H₂ (g) + Cl₂ (g) --> 2 HCl (g)

10 moles H₂          2 moles HCl
-------------------  x  ---------------------   = 20 moles HCl
                               1 mole H₂


Write the ion symbol for an atom with the given number of protons and electrons.
55 protons and 54 electrons

Answers

The element is identified with the number of protons, and the element with 55 protons is Cs.

Since there are 54 electrons, the overall charge is +1, so the answer is [tex]\boxed{\text{Cs}^{+}}[/tex]

The ion symbol for an atom with 55 protons and 54 electrons is [tex]Cs^+[/tex]. In chemistry, a "ion" is a term used to describe an electrically charged particle.

An electrically charged particle is referred to as a "ion" in chemistry. It can be negatively charged (referred to as an anion) or positively charged (referred to as a cation). Ions are created when there is an imbalance between the number of protons and electrons in an atom, which happens when atoms gain or lose electrons. Ions are essential in many chemical processes and are in charge of an electrolytic solution's conductivity. Electric current can flow because in solution, ions are free to travel and carry electrical charges. Ions play an important role in cellular communication and the transport of chemicals through cell membranes in biological systems.

To know more about ion, here:

https://brainly.com/question/29183072

#SPJ6

i) Explain why chlorine(1) oxide has a low melting point.

Answers

Answer:

Being a covalent compound, the intermolecular forces between the Cl2O molecules are weak and easily overcome. Therefore little heat energy, in terms of low boiling point is involved.

A high temperature reaction vessel is charged with 0.5860 mol of iron powder and 35.1 L of oxygen gas at standard temperature pressure. On heating, the iron and oxygen react according to the balanced reaction below.

4Fe(s) + 3O2(g) ®️ 2Fe2O3(s)

After the reaction vessel is called, and assuming the reaction goes to completion, what volume of oxygen remains?

Answers

Answer: 25.1195 L

Explanation:

Given:

There are 0.5860 mol of Iron powder (Fe)

The volume of oxygen gas at STP is 31.5 L

The volume filled by a gas at STP is approximately 22.71 L

Therefore, the moles of oxygen gas at STP = Volume of oxygen gas at STP/ 22.71

= 35.1/22.71

= 1.5456 mol

The balanced chemical equation given for this reaction is:

4Fe(s) + 3O2 (g) ----> 2Fe2O3 (s)

Dividing the above equation by 2, yields:

2Fe(s) + 3/2O2(g) -------> Fe2O3 (s)

From the equation we see:

2 moles of Fe reacts with 3/2 mole of O2 to give one mole of Fe2O3

Thus, let x moles of O2 react with 0.5860 moles of Fe

0.5860/2=x/3/2

0.5860*3=4*x

x = 1.758/4

x =0.4395 mol

So the remaining moles of oxygen gas = 1.5456 - 0.4395

= 1.1061 mol

Therefore, the amount of oxygen gas, in litres, remaining is = 1.1061*22.71

= 25.1195 L

The element __ is the most similar to oxygen in chemical and physical properties.

Answers

Answer:

the element air is the most similar to oxygen in chemical. and physical properties


ICI(g) + Cl₂(g) → ICl3(s). The AG(f) of ICI(g) is -5.5 kJ/mol and the
AG(f)° of ICl3(s) is -22.59 kJ/mol
What is the AG of the reaction, in kJ/mol?

Answers

Answer:

KJ8RT898TGHO7-6734354546746R476

Explanation:

Question 17 of 30
For a reaction, AH = -286 kJ. When is the reaction spontaneous?
A. When TAS> 0
B. When TA S= -286 kJ
C. When TAS<-286 kJ
D. When TAS = 2(-286 kJ)

Answers

The reaction is spontaneous when TΔS is greater than zero (TΔS>0).

Spontaneous reaction

A spontaneous reaction is determined by applying Gib's free energy formula as follows;

ΔG = ΔH - TΔS

A reaction is spontaneous when Gib's free energy is negative.

For the given example, the change in enthalpy is negative (-286 kJ), to obtain a negative Gib's free energy, the entropy must be positive.

Thus, the reaction is spontaneous when TΔS is greater than zero (TΔS>0).

Learn more about spontaneous reaction here: https://brainly.com/question/24376583

#SPJ1

Which of the following stores chemical energy?

A. the bonds of a molecule

B. the nucleus of an atom

C. the density of a substance

D. the temperature of a substance

Answers

Answer:

A: The bonds of a Molecule

Explanation:

A=the bonds of a molecule

Does a displacement reaction take place in 'magnesium + lead nitrate'? and if so why?

Answers

Answer:

Maybe or maybe not (not sure)

Explanation:

A displacement reaction is a type of reaction where one element is displaced by another from a compound.

In the case of magnesium and lead nitrate, magnesium is more reactive than lead. Therefore, it will displace lead from lead nitrate to form magnesium nitrate and lead.

The reaction can be represented as:

Mg(s) + Pb(NO3)2(aq) → Mg(NO3)2(aq) + Pb(s)


Another answer could be;

A displacement reaction does not take place in 'magnesium + lead nitrate' because magnesium is more reactive than lead.

Which of the following is the correct set-up for the problem: How many grams of water will be produced from 3.2 moles of oxygen and an excess of C2H4?​

Answers

Option C is the correct set of the problem for mass of water produced by 3.2 moles of oxygen and an excess ethene.

Reaction between oxygen and ethene

Ethene (C2H4) burns in the presence of oxygen (O2) to form carbon dioxide (CO2) and water (H2O) along with the evolution of heat and light.

C₂H₄  + 3O₂   ----- > 2CO₂ + 2H₂O

from the equation above;

3 moles of O₂ ---------> 2(18 g) of water

3.5 moles of O₂ ----------> x

[tex]x = 3.2 \times [\frac{2 \ moles \ H_2O}{3 \ moles \ O_2} ] \times[ \frac{18.02 \ g \ H_2O}{1 \ mole \ H_2O} ][/tex]

Thus, option C is the correct set of the problem for mass of water produced by 3.2 moles of oxygen and an excess ethene.

Learn more about reaction of ethene here: https://brainly.com/question/4282233

#SPJ1

Other Questions
Select the three adjectives. Don't select any articles (a, an, or the).Two bulldozers have been sitting in the empty lot by the mall for several weeks.Submit Narcissus stared at his reflection in the pond dazzled by his own beauty, but after he was gone the surrounding forest stood swaying in the wind just as it had before. how has the theme developed? 1. by showing that narcissus is dazzled by his own reflection, the poemcommunicates that vanity can be one's downfall. 2. by showing that the trees are swaying, the poem communicates thepeacefulness of nature. 3. by showing that the forest remains after narcissus is gone, thepoem communicates that human beauty is fleeting. At the end of 2022, Carla Vista Co. has accounts receivable of $773,900 and an allowance for doubtful accounts of $63,000. On January 24, 2023, the company learns that its receivable from Megan Gray is not collectible, and management authorizes a write-off of $5,500. On March 4, 2023, Carla Vista Co. receives payment of $5,500 in full from Megan Gray. Prepare the journal entries to record the March 4, 2023, transaction. (Credit account titles are automatically indented when amount is entered. Do not indent manually.) the force of impact is "you have a 35% better chance of remembering things if you write them down." which governing principle is best reflected by the representative government created by the constitution? Brad took 5 kicks and made 4 goals: 4/5Sydney will take 10 shots and she wants to make an equivalent fraction of the goals. How many goals must She make?4/5 x ?/? = ?/10 If Cyrus knows that ABCEDC and ABED, how can he prove that line m passing through AB has the same slope as line l passing through ED? Whats the range of this graph?A) all real numbersB) all real numbers greater than or equal to 0C) all real numbers greater than or equal to 1D) all real numbers greater than or equal to 2 PLEASE HELP!! 50 POINTS!!!!! Who is the administrator of the city Matanzas, in Cuba? In call of the wild what does the word realm mean? Explain why the atomic mass of an element is weighted average mass true or false? the goal of critical reading is to develop independent conclusions from the text. Rabbits were introduced to Australia by humans and have caused severe disruptions to the natural ecosystem. How would you classify these rabbits? Find the area to the nearesy square foot of the shaded region below, consisting of a square with a circle cut out of it. Why did the North have an economic advantage over the South? 8At a party there are 90 people.48 are women and 42 are men.Some women leave.Some men arrive.The ratio of women to men is now10:11Are there now more than 90 people at the party?Tick one box.YesNoShow working to support your answer.Cannot tell[2 marks PLEASE HELP! PLEASE!!!!!!! An intravenous solution needs 2 liters (L) of glucose to be mixed with 7 units of blood. How much glucose (in liters) is needed for 30 units of blood