The chemical substance in natural gas is a compound called methane. Its molecules are composed of carbon and hydrogen and each molecule contains four atoms of hydrogen and one atom of carbon. In this compound, 0.33597g of hydrogen is combined with 1g of C12. Use this information to calculate the atomic mass of the element hydrogen.
Please explain each step thoroughly, thanks in advance!

  1. 👍
  2. 👎
  3. 👁
  1. first we write the balanced chemical reaction:
    C + 2 H2 -> CH4
    *note that Hydrogen is diatomic in nature (that's why it's H2, not H)
    then to get how much H2 reacted (in grams), we use the data of Carbon. 1 g of Carbon reacted, thus to get the number of moles of C, we divide 1 g by its molar mass (which is 12 g/mol)
    1/12 = 0.0833 mol C
    using the stoichiometric coefficients (number before the chemical symbol in the reaction) of the elements, we can relate the number of moles of C reacted to the number of moles of H2 reacted:
    0.0833 mol C * (2 mol H2 / 1 mol C) = 0.1667 mol H2
    then from the given, 0.33597 g of H is used. to convert this to grams of H2, we just divide 0.33597 by 2:
    0.33597 g H / 2 = 0.167985 g H2
    finally, to the the molar mass of H, we divide grams of H2 by moles of H2:
    0.167985 / 0.1667 = 1.01 g/mol

    hope this helps~ :)

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    there are ___ molecules of methane (CH4) in 0.123 moles of methane? a. 16 b. 0.773 c. 2.46 x 10 -2 d. 7.40 x 10 22 e. 6.02 x 10 23

  2. Science~Ms. Sue

    If you are describing methane as a gas that easily catches fire, you are describing a ____. A. state of matter*** B. physical property C. chemical property D. chemical formula I think it's A

  3. Science

    4.)When two or more atoms of the same of the same element are in a chemical bond, the substance is called a(n)________ A.)Compound B.)Molecule C.)Nucleus D.)Particle*** Am I'm correct? BUT My mom disagree's and says C?, isn't she

  4. Chemistry - Liquid Methane?

    "The planets Uranus and Neptune are so far from the Sun that temperatures are low enough for atmospheric methane, CH4, to condense and form clouds. How is it possible for methane, a nonpolar substance, to exist in this liquid

  1. science

    Here are all the word you can use chemical property mixture heatcapasity homogeneous viscosity sublimitation physicalproperty compound chemicalformula substance density mass tempurature pressure heterogenerous A _________ property

  2. Chemistry

    Which substance can not be decomposed by ordinary chemical means? how? 1. methane 2. mercury 3. ethanol 4. ammonia

  3. Chemistry

    A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. The gas has exactly the same properties as the product obtained when carbon is burned in an excess of

  4. Intergrated Science A

    Which answer choices best indicate that a substance has experienced a chemical change? Select all that apply. when the substance changes temperature when the substance changes shape when the substance changes volume when a new

  1. Chemistry

    One proposed design for a Mars rover uses a methane gas fuel cell as its power supply. The methane fuel can be made on Mars using a chemical reaction that has been known for over 100-a the Sabatier methanation reaction: C02(g) +

  2. Integrated Science

    Which substance is the least likely to dissolve in water? methanol (polar) vegetable oil (nonpolar) table salt (ionic) methane (gas) I think its B or D but not positive

  3. SCIENCE 1

    The van der waals equation incorporates corrections to the ideal gas in order to account for the properties of real gases one of the correcctions accounts for A.attractions between molecules B.the quantum behavior of molecules

  4. Science URGENT

    Chemical energy is stored in the bonds of 1. oxygen molecules 2.water molecules 3. glucose molecules 4.carbon dioxide molecules

You can view more similar questions or ask a new question.