Chemistry

posted by .

If a sample of ammonium sulfate contains 1.75 grams of nitrogen [N] atoms, calculate the mass (in grams) it contains of sulfur atoms [S].

  • Chemistry -

    We have (NH4)2SO4 contg 1.75 g N atoms.
    1.75 g N atoms = ? mols N atoms
    That's mol = g/molar mass = 1.75/14 = approx 0.125.
    There are 2 mol N atoms in 1 mo (NH4)2SO4; therefore, we must have 0.1235/2 = mols (NH4)2SO4 = approx 0.0625.
    Since there is 1 mol S in 1 mol (NH4)2SO4 then we must have 0.0625 mols S. Then g = mols S x atomic mass S = ? grams.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did
  2. Chemistry

    Calculate what mass of carbon disulfide molecules contains the same number of sulfur atoms as 100.0 g of sodium sulfate.
  3. chemistry

    Calculate the mass, in grams, of each of the following. a) 1.2×10^23 gold atoms b) 2.78×10^22 helium atoms c) 2.0×10^23 lead atoms d) 7.6×10^21 uranium atoms
  4. chemistry

    1.How many atoms are in a sample of copper with a mass of 18.46 grams?
  5. chemistry

    1.How many atoms are in a sample of copper with a mass of 18.46 grams?
  6. Chemistry

    If a sample of Co2(CO)8 is found to contain 6*10^-2 mol of C atoms, how many grams of Co atoms are present?
  7. chemistry

    A sample of the male sex hormone testosterone, C19H28O2, contains 4.09 1021 hydrogen atoms What is the mass of this sample in grams?
  8. Chemistry

    What mass of rhodium contains as many atoms as there are zirconium atoms in 51 g of zirconium?
  9. Chemistry

    If a sample of silver carbonate contains 1.75 grams of silver [Ag] atoms, calculate the mass (in grams) it contains of oxygen atoms [O].
  10. Chemistry

    Rubbing alcohol often contains propanol, C3H7OH. Suppose you have an 85.9 g sample. a) How many carbon atoms are in the sample?

More Similar Questions