Fill in the blanks:
87 pg = [? ]x10^[?]g

Fill In The Blanks:87 Pg = [? ]x10^[?]g

Answers

Answer 1

87 picograms are equivalent to [tex]8.7\times 10^{-11}[/tex] grams.

This is a unit problem, in which a derived unit must translated into a fundamental unit. A picogram is a equivalent to a trillionth of a gram, which is the fundamental SI mass unit. Mathematically speaking, we have the following equivalence:

[tex]1\,pg = 1\times 10^{-12}\,g[/tex]

Now we proceed to find the equivalent value for this case:

[tex]87\,pg[/tex]

[tex]87\times 10^{-12}\,g[/tex]

[tex]8.7\times 10^{-11}\,g[/tex]

87 picograms are equivalent to [tex]8.7\times 10^{-11}[/tex] grams.

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Related Questions

100 ml of nitrogen collected at 27 degree celcius cooled to -73 degree celcius at same pressure.calculate the contraction in volume.​

Answers

Explanation:

P1. V1/T1 = P2. V2/T2

Apply this

since here, P1 = P2

100 ml / 300 = V2/ 200

==> 100*200/300 = V2

===> V2 = 66.66 ml

someone pls help me explain this question

Question:
Temperature is a measure of how hot or cold something is.
Do you agree or disagree?

I need explanation I know its agree I just need to explain.

Answers

Answer:

yes agree. I is describing a feeling/ reaction to an action I hope this helps!:)

Temperature measures kinetic energy of particles and therefore the higher the kinetic energy in particles within a solution, the higher the temp

What was boyle’s most famous discovery about gases?

Answers

Answer:

Boyle's most famous discovery had to do with how the pressure and volume of gases relate, either this or he discovered the volume of a gas decreases with increasing pressure...

Explanation:

...

preventive maintenance on a hot water heater includes:

Answers

A water heater can be regularly maintained by flushing it at least two times in a year.

A water heater is a device that is used to heat up water for home use. There are different types of water heaters but they all serve the same purpose at home. In order to maintain maximum efficiency, the water heater must be maintained regularly.

The following are routine maintenance operations on a water heater;

Inspect the heater regularly to ascertain if there are faults.Flush the heater at least two times each year.The anode rod should be changed after a couple of years

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NO LINKS!!!
Help . . .

Where is the magnetic field strongest?
A. closest to the wire
B. Farthest from the wire

Answers

Answer:

In general, the magnetic field is strongest close to the wire and weaker farther away. In fact, the magnetic field weakens as 1/r1/r where rr is the distance from the wire. This can change a bit depending on the length and shape of the wire. Far enough away, the magnetic field decays as 1/r21/r2 .

Answer:

Closest to the wire

Explanation:

In general, the magnetic field is strongest close to the wire and weaker farther away. In fact, the magnetic field weakens as where is the distance from the wire. This can change a bit depending on the length and shape of the wire.

Exhaling CO2 (Carbon Dioxide) is an example of what?
A-Excretion
B-movement
C- Nutrition
D- Reproduction

Answers

A. Excretion

(Word cap fill)

HELP WILL MARK BRAINLIEST
If an electrically charged plastic bag is placed close to an uncharged cloth, what will happen?

The charge of the bag will change.
The charge of the cloth will change.
The plastic bag will attract the cloth.
The plastic bag will repel the cloth.

Answers

Answer:the plastic bag will attract the cloth

Explanation:

Answer:

c

Explanation:

hope this helps

Which of the following compounds contains the largest number of atoms? *
O A. 1.00 mole of NH3
O B. 1.00 mole of H2SO4
о
C. 1.00 mole of HBr

Answers

Hope this will help
I think it’s B

A 1.00 mole of Sulfuric acid (H₂SO₄) contains the largest number of atoms (7 atoms/molecule). Option B is correct.

To determine which of the given compounds contains the largest number of atoms in 1.00 mole, we need to consider the number of atoms in each compound.

1.00 mole of NH₃ contains:

1 mole of N atoms (1 atom/molecule)

3 moles of H atoms (3 atoms/molecule)

Total atoms = 1 + 3 = 4 atoms/molecule

1.00 mole of H₂SO₄ contains:

2 moles of H atoms (2 atoms/molecule)

1 mole of S atoms (1 atom/molecule)

4 moles of O atoms (4 atoms/molecule)

Total atoms = 2 + 1 + 4 = 7 atoms/molecule

1.00 mole of HBr contains:

1 mole of H atoms (1 atom/molecule)

1 mole of Br atoms (1 atom/molecule)

Total atoms = 1 + 1 = 2 atoms/molecule

Therefore, 1.00 mole of H₂SO₄, contains the largest number of atoms.

Hence, B. is the correct option.

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Which of the following would
9 indicate a new substance has
been formed?
Bubbling and fizzing
occur.
Powder dissolves in
an unknown liquid
A beaker of
hydrochloric acid
evaporates after
several days
Solid iron is melted to
a liquid
Color YELLOW
Color ORANGE
Color PINK
Which one?

Answers

Answer:

Bubbling and fizzing are likely to occur when a new substance is formed. The other examples are simply changing to a different form of the same substance.

How did the believers show their fellowship with one another?​

Answers

Answer:

I think you may have chosen the wrong subject for your question, besides where is the context to this?

The chemical equation below shows the decomposition of ammonium nitrate (NH4NO3). NH4NO3 Right arrow. N2O 2H2O A chemist who is performing this reaction starts with 160. 1 g of NH4NO3. The molar mass of NH4NO3 is 80. 03 g/mol; the molar mass of water (H2O) is 18. 01 g/mol. What mass, in grams, of H2O is produced? 9. 01 18. 01 36. 03 72. 6.

Answers

The mass of water, H₂O produced from the reaction is 72.06 g

We'll begin by calculating the mass of NH₄NO₃ that reacted and the mass of H₂O produced from the balanced equation.

NH₄NO₃ —> N₂O + 2H₂O

Molar mass of NH₄NO₃ = 80.03 g/mol

Mass of NH₄NO₃ from the balanced equation = 1 × 80.03 = 80.03 g

Molar mass of H₂O = 18.01 g/mol

Mass of H₂O from the balanced equation = 2 × 18.01 = 36.02 g

From the balanced equation above,

80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O

Finally, we shall determine the mass of H₂O produced by the reaction of 160.1 g of NH₄NO₃.

From the balanced equation above,

80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O.

Therefore,

160.1 g of NH₄NO₃ will react to produce = (160.1 × 36.02) / 80.03 = 72.06 g of H₂O.

Thus, the mass of water, H₂O produced from the reaction is 72.06 g

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what natural resources are used to make plastic bags

Answers

Answer:patrolieum

Explanation:

Describe what a reversible reaction is.

Answers

A reversible reaction is a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously.

[tex] \large \sf \pink{hopefully ♡♡}[/tex]

What do you think will happen to the Sun when all the hydrogen in it fuses to become helium?

Answers

Answer: In the core of the Sun hydrogen is being converted into helium. This is called nuclear fusion. It takes four hydrogen atoms to fuse into each helium atom. During the process some of the mass is converted into energy.

100 POINTS PLEASE HELP

1. What is the molar mass of NaOH?


2.How many atoms are in 3.35 moles of Aluminum?


3.How many moles of CO2 gas are in a 101.25 L container filled with CO2 gas?


4.What is the mass of 13.7 moles of N2 gas?


5.How many moles are in 78.5 molecules of CaCO3?

Answers

Answer:

1. 39.997 g/mol

2. 6.022⋅1023 atoms of aluminium

3. 0.026 moles

4. 14 grams is the molar mass of nitrogen meaning that one mole of nitrogen atoms is 14 grams. One mole of any substance has 6.02*10^23 atoms/molecules of that subtance therefore there are 6.02*10^23 atoms of nitrogen in 14g of nitrogen

5. 78.5

Explanation:

how many molecules of atp are produced as a result of glycolysis

Answers

Answer:

2 ATP molecules are produced

Answer:

2 ATP molecules of ATP are produced

either elements or compounds which are present prior to a chemical reaction

Answers

Answer:

Do you mean the reactants? They are present prior to the reaction taking place. The products are the results of the reaction.

what species has an atom with an oxidation number of 3

Answers

So we found out that chlorine had an overall oxidation number of plus three, and that's it for this one.

Identify the limiting reactant when 9.65-g H2SO4 reacts with 6.10-g of NaOH.

Answers

Answer:

3.56

Explanation:

5 grams of sodium bicarbonate, a white powdery solid, is placed in an empty red balloon. 100 grams of acetic acid, a clear aqueous solution, is placed in the plastic bottle. The balloon is carefully attached to the bottle so that no air can get in or out and the powder does not fall into the bottle. Once attached, the apparatus is placed on a balance and the contents are mixed. Bubbles form, the balloon inflated, and the white powder is no longer visible. Which of the these statements would match your observations? A) A chemical reaction has occurred and the mass will increase. B) A chemical reaction has occurred and the mass will decrease. C) A physical reaction has occurred and the mass will decrease. D) A chemical reaction has occurred and the mass will remain the same.

Answers

Answer: im pretty sure its D

Explanation:

Copper has a density of 8.96 g/cm^3. What is the mass of a piece of copper with a volume of 2.62 cm^3?

Answers

Answer:

23.48

Explanation:

Good Luck!

Answer: 23.48 g

Explanation:

formula: mass = density x volume

Volume of copper = 2.62 cm^3

Density of copper = 8.96 g/cm^3

mass = 8.96 x 2.62 = 23.4752

Why are ionic compounds not considered to be molecules?

Answers

Answer:

No, ionic compounds are crystals of infinite cations and anions bound together. There is no “molecule” of ionic compounds such as, for example, NaCl, because there are no single units of the compound.

Explanation:

Ionic compounds are not considered to be molecules because they do not consist of discrete, covalently bonded units like molecules.

In ionic compounds, the bonding occurs through the transfer of electrons from one atom to another, resulting in the formation of ions. These ions are held together by strong electrostatic attractions, known as ionic bonds.

Unlike molecules, which are formed by the sharing of electrons in covalent bonds, ionic compounds do not have individual units with fixed numbers of atoms. Instead, they exist as a three-dimensional lattice structure composed of alternating positive and negative ions. The ions are arranged in a repeating pattern throughout the crystal lattice.

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How many grams of barium chloride are produced when 1.25 x 1023 molecules of HCl reacts with barium?

Answers

Considering the reaction stoichiometry and Avogadro's Number, the mass of barium chloride produced is 21.6 grams.

Balanced reaction

The balanced reaction is

2 HCl + Ba → BaCl₂ + H₂

Moles of HCl that react

Avogadro's Number is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

Then you can apply the following rule of three: if 6.023×10²³ molecules are contained in 1 mole of HCl, then 1.25×10²³ molecules are contained in how many moles of HCl?

amount of moles of HCl= (1.25×10²³ molecules × 1 mole)÷ 6.023×10²³ atoms

amount of moles of HCl= 0.2075 moles

Then, 0.2075 moles of HCl react.

Reaction stoichiometry

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

HCl: 2 moles Ba: 1 mole BaCl₂: 1 mole H₂: 1 mole

Mass of barium chloride produced

Then you can apply the following rule of three: if by stoichiometry 2 moles of HCl produce 1 mole of BaCl₂, 0.2075 moles of HCl will produce how many moles of BaCl₂?

[tex]amount of moles of BaCl_{2} =\frac{0.2075 moles of HCl x 1 mole of BaCl_{2} }{ 2moles of HCl}[/tex]

amount of moles of BaCl₂= 0.10375 moles

Being the molar mass of BaCl₂ 208.24 g/mole, then the mass of barium chloride produced is calculated as:

[tex]0.10375 molesx\frac{208.24 grams}{1 mole} =21.6 grams[/tex]

Finally, the mass of barium chloride produced is 21.6 grams.

Learn more about:

Avogadro's Numberbrainly.com/question/11907018?referrer=searchResults brainly.com/question/1445383?referrer=searchResults brainly.com/question/1528951?referrer=searchResultsReaction stoichiometry brainly.com/question/16487206?referrer=searchResults brainly.com/question/14446695?referrer=searchResults brainly.com/question/11564309?referrer=searchResults brainly.com/question/4025026?referrer=searchResults brainly.com/question/18650135?referrer=searchResults

Perform the following
mathematical operation, and
report the answer to the correct
number of significant figures.
3.22 x 0.17 = [?]

Answers

Answer:

0.5474

Explanation:

3.22 x 0.17

     \/

322 x 17 = 5,474

[] There are four places "after" the decimal in 3.22 and 0.17 combined, meaning we move the decimal to the right four times in our current answer

-> 5,474 becomes 0.5474

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:0.55

Explanation:

3.22 × 0.17 calculated with significant figures is 0.55, which has 2 sig figs and 2 decimals. There are 2 steps to calculate 3.22 × 0.17 with sig figs. 0.55 rounded to 1 sig figs is 0.6.

how many atp are produced in the electron transport chain

Answers

Answer:

34 ATP

Explanation:

NEED HELP ASAP!!! TYSM!!!! What are the coefficients when the following equations are balanced?

__CH4 + __O2 --> __CO2 + __H2O

__Fe + __O2 --> __Fe2O3

Answers

CH4+2O2–>CO2+2H2O

4Fe+3O2–>2Fe2O3

Pls
Due today pls help asfast as possible

Answers

Answer: D. 10,000 km = Exosphere; 690 km = Thermosphere; 85 km Mesosphere; 50 km = Stratosphere; 20 km = Troposphere

2. True

3. True

4. True

5. True

PLS HELP

Answer this question and I will mark you the braninliest! <3

Answers

Answer:

the left one

Explanation:

heavier means it goes faster

Can water stay liquid below zero degrees Celsius?

Answers

nope it vaporized

.........pls Mark barinlist I

how did Alexander dye ?​

Answers

Answer:

After surviving battle after fierce battle, Alexander the Great died in June 323 B.C. at age 32. Some historians say Alexander died of malaria or other natural causes; others believe he was poisoned. Either way, he never named a successor.

Answer:

After surviving battle after fierce battle, Alexander the Great died in June 323 B.C. at age 32. Some historians say Alexander died of malaria or other natural causes; others believe he was poisoned. Either way, he never named a successor

Explanation:

hope it helps

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