Post a New Question

AP Chemistry

posted by .

14 carat gold has a purity of 58.3%. How
many moles of gold are in 172 grams of 14
carat gold?
Answer in units of moles

  • AP Chemistry -

    g Au = 172 x 0.583 = ?
    Then mols = grams/atomic mass

  • AP Chemistry -

    I got 100.276. Do i divide that by 172?

  • AP Chemistry -

    No, mols = grams/atomic mass Au.
    100.276/196.966 = ?
    Watch the number of significant digits; especially if your prof is picky about that OR if you are typing these answers into a database.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    14 carat gold has a purity of 58.3% How many moles of gold are in 124 grams of 14 carat gold ?
  2. chemistry

    14 carat gold has a purity of 58.3%. how many moles of gold are in 155 grams of 14 carat gold?
  3. chem

    14 carat gold has a purity of 58.3%. How many moles of gold are in 137 grams of 14 carat gold?
  4. Maths

    In a jewllery shop, necklaces are sold as either 18 carat gold, 22 carat gold or 24 carat gold. The number of necklaces in stock in the shop are shown: 18 carat: 40 stock 22 carat: - 24 carat: 20 stock 25% of the stocks of necklaces …
  5. Honors chemistry

    i am doing a project for school and i was told to research the alloy of 16 carat gold. I have found all the other information that i need, but i cannot find the melting or boiling point of 16 carat gold! please help soon my project …
  6. chemistry

    From the jewelry descriptions given, select the homogeneous mixture or solution. Answer?
  7. Chemistry

    From the jewelry descriptions given, select the homogeneous mixture or solution. Answer?
  8. Science

    How many number of gold atom are present in 0.6 gm of 18 carat gold.The 24 carat gold is taken as 100% pure gold.(atomic mass of gold=197a.m.u)
  9. Chemistry

    7) 14 carat gold has a purity of 58.3%. How many moles of gold are in 163 grams of 14 carat gold?
  10. Maths Percentage

    Find the percentage of pure gold in 22-carat gold, if 24-carat gold is 100% pure gold.

More Similar Questions

Post a New Question