chemistry

A compound made up of C, H, and Cl contains 55,0 percent Cl by mass. If 9,00 g of the compound contain 4,19 x 10^23 H atoms, what is the empirical formula of the compound?

  1. 👍 0
  2. 👎 0
  3. 👁 846
  1. I would do this.
    g Cl = 9.00 x 0.55 = ??
    g H = (4.19E23/6.02E23)*atomic mass H = ??
    g C = 9.00-gC-gH.

    Then convert g of each to mole of each and find the ratio to each other with the smallest number being 1.00. The easy way to do that is to divide the smallest number by itself, then divide the other two numbers by the same small number. Round the final numbers to whole numbers. C2H5Cl is the probably answer but you need to confirm that. I worked some of this in my head.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A compound with a percent composition by mass of 87.5% N and 12.5% H was recently discovered. What is the number of moles of Hydrogen in this compound? Atomic Mass: N = 14.01, H = 1.008

    asked by Anonymous on August 1, 2013
  2. chemistry

    A compound with the percent composition shown below has a molar mass of 60.10g/mol. Find its molecular formula: C, 39.97% H, 13.41% N, 46.62%

    asked by jay on February 15, 2013
  3. Chemistry

    The percent composition by mass of an unknown compound with a molecular mass of 60.052 amu is 40.002% C, 6.7135% H, and 53.284% O. Determine the compound's empirical and molecular formulas.

    asked by Christina on October 10, 2017
  4. chemistry

    29.0g Ag combine completely with 4.30g S to form a compound. what is the percent composition of each element in this compound

    asked by kim on November 19, 2014
  5. Chemistry

    A compound is 85.6% carbon by mass. The rest is hydrogen. When 10.0 g of the compound is evaporated at 50.0 ∘C, the vapor occupies 6.30 L at 1.00 atm pressure. What is the molecular formula of the compound?

    asked by Anonymous on November 14, 2017
  1. A.P Chemistry

    Three volatile compounds X,Y, and Z each contain elements Q. The precent by weight of element Q in each compound was determined. Some of the data obtained are given below Percent by weight Molecular Compound of Element Q Weight X

    asked by Brianna on October 23, 2006
  2. Chem

    A bottle of win contains 12.5% ethanol by volume. The density of ethanol (C2H5OH) is .79 g/mL. Calculate the concentration of ethanol in wine as mass percent and molality. I calculated molality as 2.4 m/kg, but I'm stumped on the

    asked by Jessica on March 25, 2007
  3. Molar Mass & Elements

    The weight percent of oxygen in an oxide that has the formula MO2, is 15.2%. What is the molar mass of this compound? What element or elements are possible for M? what can someone give me a push in the right direction???? Let x be

    asked by nglaze on June 26, 2006
  4. chemestry

    A 1.00 g sample of naphthalene (C10H8) contains 0.562 g of hydrogen. What is the mass percent of carbon in the compound

    asked by camm on September 13, 2013
  5. Chem

    A sample of an unknown biochemical compound is found to have a percent composition of 55.03 percent carbon, 5.54 percent hydrogen, 32.10 percent nitrogen and the balance oxygen. What is the simplest formula for this compound ? How

    asked by Melinda on October 4, 2012
  6. chemistry

    A sample of 0.6760 g of an unknown compound containing barium ions (Ba2+) is dissolved in water and treated with an excess of Na2SO4. If the mass of the BaSO4 precipitate formed is 0.1405 g, what is the percent by mass of Ba in

    asked by Michael on September 29, 2010

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