Chemistry

posted by .

If given: A 1.4470g sample of an oxide of gold was reduced with ethane to 1.2900g of gold metal. What is the simple formula of the original gold oxide?

  • Chemistry -

    How many moles of gold is 1.29g? How many moles of O is in (1.447-1.29)g of oxygen?

    divide the lower number of moles (gold, or O) into the larger, that is the mole ratio of the elements in the formula.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    A chemist wants to extract the gold from 15.0g of gold(II) chloride dihydrate, AuCl3 • 2H20, What mass of gold could be obtained from this sample?
  2. CHEMISTRYYYY HELP

    A sample of gold ore contains 22.0 g of gold metal per 100kg of ore. If gold has a market value of $350.00 per oz., what mass of ore, in tons, must be refined to get one million dollars worth of pure gold?
  3. Chemistry

    You observe that when copper is added to a soltion containing gold ions, the copper dissolves and the gold precipitates. Similarly, almost every other metal will displace gold from solutions of gold salts. a) Do these observations …
  4. Chemistry

    A 15g sample of what appears to be gold that was heated from 22 degrees C to 39 degrees C, required 26.3 J of energy. If the specific heat of gold is .129 J/(g x degrees C), is the metal pure gold?
  5. Chemistry

    The relative amount of gold in an alloy is commonly expressed in units of carats. Pure gold is 24 carats, and the percentage of gold in an alloy is given as a percentage of this value. For example, an alloy that is 50 percent gold …
  6. chemistry

    It is observed that when solid copper is added to a solution containing gold ions, the copper dissolves and the gold precipitates. Similarly, almost every other metal will displace gold from solutions of gold salts. a. Do these results …
  7. Chemistry

    A 45.4 grams of a gold metal sample was heated with the amount of energy of 228 J. Which of the following would the most plausible temperature change of the gold sample?
  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 101

    If gold sells today for 1625 per ounce, and a large mining truck hauls 400 tons of gold ore, what is the value of the gold in each truck if each ton of gold ore contains 1.0 ounces of gold?
  10. Chemistry 101

    If gold sells today for 1625 per ounce, and a large mining truck hauls 400 tons of gold ore, what is the value of the gold in each truck if each ton of gold ore contains 1.0 ounces of gold?

More Similar Questions