chemistry

posted by .

A 18.2 g sample of an unknown compound contains 0.7 g of oxygen. What is the percent by mass of oxygen in the compound?

  • chemistry -

    What is .7/18.2?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Rust contains an iron-oxygen compound in which there are three oxygen atoms for each two iron atoms. In this compound, the iron to oxygen mass ratio is 2.325:1. Another compound of iron and oxygen contains these elements in the ratio …
  2. Chemistry

    Oxygen is 36.8% of a compound. What is the mass in grams of a sample of the compound that contains 21.8 g of oxygen?
  3. Chemistry

    A 12 g sample of an unknown compound contains 3.489 g of sodium and 4.870 g of sulfur. The rest is oxygen. Name the compound Thank you!
  4. chemistry

    A compound weighing 115 g contains 68.3 g of carbon, 13.2 g of hydrogen, 15.9 g of nitrogen, and some amount of oxygen. What is the mass percent of oxygen in the compound?
  5. chemistry

    A 230 g sample of a compound contains 136.6 g of carbon, 26.4 g of hydrogen, and 31.8 g of nitrogen. The rest is oxygen. What is the mass percent of oxygen in the compound?
  6. chemistry

    A 230 g sample of a compound contains 136.6 g of carbon, 26.4 g of hydrogen, and 31.8 g of nitrogen. The rest is oxygen. What is the mass percent of oxygen in the compound?
  7. Chemistry

    A 18.2 g sample of an unknown compound contains 0.7 g of oxygen. What is the percent by mass of oxygen in the compound?
  8. chemistry

    A 71.1 g sample of an unknown compound contains 10.1 g of hydrogen. What is the percent by mass of hydrogen in the compound?
  9. chemistry

    A 26.6 g sample of an unknown compound contains 0.8 g of oxygen. What is the percent by mass of oxygen in the compound?
  10. chemistry

    A compound contains 14.5 g of magnesium and 3.5 g of oxygen. What is the mass percent of oxygen in the compound?

More Similar Questions