1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ronch [10]
3 years ago
10

How to calculate the mass percent of hydrogen

Chemistry
1 answer:
Keith_Richards [23]3 years ago
8 0

Answer:

divide the mass of element in 1 mole of the compound by the compound's molar mass and multiply the answer by 100.

Explanation:

take the molar mass of hydrogen in the water molecule, divide by the total molar mass of water, and multiply by 100.

does it help?

You might be interested in
What is the number of molecules of c2h5oh in a 3m solution that contains 4.00kg h2o?
Veronika [31]
 The number  of C2H5OH  in a 3 m solution that contain 4.00kg H2O is calculate as below

M = moles of the solute/Kg  of water

that is 3M = moles of solute/ 4 Kg
multiply  both side by  4

moles of the  solute  is therefore = 12  moles

by use of Avogadro law constant

1 mole =6.02 x10^23  molecules

what  about 12 moles

=12 moles/1 moles  x 6.02 x10^23 = 7.224 x10^24 molecules
3 0
3 years ago
1) G to H.<br> 2) I to J.<br> 3) J to I.<br> 4) I to H.
prisoha [69]

3 ..............................

5 0
3 years ago
Given a 1.50 Liters of solution that contains 62.5 grams of magnesium oxide. What is the Molarity of that solution? Please show
zhenek [66]
Given:
1.50 L
62.5 grams
and the MM of MgO: 40.31 g/mol

Molarity: mol/L

First, find mol.

62.5 g x 1mole ÷ 40.31 g = 1.55 mol

then divide mol and the given liters

1.55mol ÷ 1.50 L= 1.03 M
3 0
3 years ago
If 1. 3618 moles of AsF3 are allowed to react with 1. 0000 mole of C2Cl6, what would be the theoretical yield of AsCl3, in moles
VARVARA [1.3K]

Answer:

AsF3:C2CI6

4:3

1.3618 moles: 1.02135 moles(1.3618÷4×3)

C2CI6 is the limting reagent

So the number of moles for AsCI3 is 0.817 moles( number of moles of the limting reagant) ÷3 ×4 (according to ratio by balancing chemical equation)=1.09 moles(3 s.f.)

or

Balanced equation

4AsF3 + 3C2Cl6 → 4AsCl3 + 3C2Cl2F4

Use stoichiometry to calculate the moles of AsCl3 that can be produced by each reactant.

Multiply the moles of each reactant by the mole ratio between it and AsCl3 in the balanced equation, so that the moles of the reactant cancel, leaving moles of AsCl3.

Explanation:

5 0
2 years ago
Hydroxyl radicals react with and eliminate many atmospheric pollutants. However, the hydroxyl radical does not clean up everythi
valentina_108 [34]

Find attachments for complete solution

5 0
3 years ago
Other questions:
  • How do carbon isotopes in fossil fuels differ from the atmosphere and from biomass?
    6·1 answer
  • The most common fuel for nuclear fission reactors is:
    12·2 answers
  • Why is the formation of water a synthesis reaction?
    12·1 answer
  • In a game of "Clue," Ms. White is killed in the conservatory. You have a device in each room to help you find the murderer— a sp
    9·1 answer
  • Which is the force of attraction that holds atoms together?
    5·1 answer
  • 50.0 grams of KCl is dissolved in water to make a 4.00 L
    15·1 answer
  • Which of the following terms refers to areas of gas on the suns surface that are cooler than the gases around them?
    14·2 answers
  • The bouncing of light when is changes media is called what
    15·2 answers
  • Now moles: _(1, 2, or 3)_moles of H2 + _(1, 2, or 3)_ moles of O2 → _(1, 2, or 3)_moles of H2O
    6·1 answer
  • Nivel de energia maximo de 20Ca
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!