Chemistry

posted by .

How many atoms are there in a 4.5 g sample of water?

  • Chemistry -

    1 mol=molar mass in grams
    6.022*10^23=1 mol
    all should cancel out whats left is answer

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Calculate the mass, in kg, of each sample.9.62×1026 cadmium atoms. -5.72×1027 nickel atoms. -9.14×1027 manganese atoms. -9.02×1029 lithium atoms.
  2. College Geology Homework

    Suppose you have a sample of potassium feldspar from a rhyolite and you measure the ratio of atoms of 40Ar to 40K of 0.024 to 1, or for every 10000 atoms of 40K you find 240 atoms of 40Ar. For this problem, consider the decline of …
  3. chemistry

    A sample of propane(c3h8)has 3.84x10^24 H atoms. a) how many carbon atoms does the sample contain?
  4. CHEMISTRY

    A sample of C3H8 has 2.64 x 10^24 atoms. How many carbon atoms does the sample contain?
  5. 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?
  6. chemysteryyy!!!!

    Rubbing Alchol often contains propanol, C3H7OH. Suppose that you have an 85.9g sample of propanol. a) Howmany carbon atoms are in the sample?
  7. Chemistry

    A sample of sucrose, C12H22O11(s),contains 0.16 mol of oxygen, atoms(O). a.) What amount in moles of sucrose is in the sample?
  8. Chemistry

    A sample of toluene, C7H8 has a mass of 74.5 g. a) how many molecules does the sample contain?
  9. chemistry

    can some one help me with a few chem questions please. A chunk of iron weighs 4.32 g. a) How many iron atoms are there in this sample?
  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