Chemistry

How do you find out the number of moles in a certain amount of grams of a element or compound.
After that, how do you find the number of atoms/molecules in that element or compound.

Thanks

grams/molar mass = # mols
There are 6.02 x 10^23 molecules in a mol of anything.

  1. 👍 0
  2. 👎 0
  3. 👁 91
asked by Slice

Respond to this Question

First Name

Your Response

Similar Questions

  1. CHEM MOLES !@@!

    Mole Calculation Worksheet 1) How many moles are in 15 grams of lithium? 2) How many grams are in 2.4 moles of sulfur? 3) How many moles are in 22 grams of argon? 4) How many grams are in 88.1 moles of magnesium? 5) How many moles

    asked by Theresa on December 16, 2014
  2. science

    from the balanced equation 4NH3 +7O2 - 4NO2 + 6H2O. How many grams of oxygen are necessary to produce 4.50 moles of NO2? I think its 11 grams or 22 grams but im not sure. please help!! First the number of moles of O2, molesO2=

    asked by Britney on March 18, 2007
  3. Chemistry

    Posted by Angeline on Monday, April 20, 2009 at 5:35pm. A few questions...how many grams are in 48.7x10^24? I don't know how to convert atoms to grams. I can do moles to grams or moles to atoms, but not atoms to grams. My other

    asked by Angeline on April 20, 2009
  4. Chemistry 130

    Will someone help me by letting me know if I did these correct, or if there the correct answers? Thanks! 2 (10). If two moles of hydrogen gas (H2) react in the following equation, how many moles of H2O will be formed? 2H2 + O2

    asked by Jessie on September 8, 2009
  5. Chemistry

    Mean titre of 0.2M sodium thiosulphate = 32.2 ml 1) Calculate number of moles of S2O32- which react in the titration 2)Calculate how many moles of I2 react with this amount of S2O3 3)How many Cu2+ ions are needed to liberate this

    asked by Chirag on January 5, 2017
  6. Chemistry/stoichiometry

    For the reaction shown, calculate how many moles of NO2 form when each amount of reactant completely reacts. 2N2O5g = 4NO2g+O2g I am assuming that the first question must be converted to grams and the second question must be

    asked by Dale on October 26, 2012
  7. Chemistry

    4Fe(s)+3 O2(g)------ 2Fe2 O3(s) How many grams of Fe will be needed to react with sufficient amount of O2 to produce 1.OOkg of Fe2 O3 ? How many moles is 1kg of IronIII oxide? Wouldn't you need twice that number of moles of Fe?

    asked by Brooke on July 1, 2007
  8. Chemistry

    A few questions...how many grams are in 48.7x10^24? I don't know how to convert atoms to grams. I can do moles to grams or moles to atoms, but not atoms to grams. My other problem is how do you convert moles to moles as in "how

    asked by Angeline on April 20, 2009
  9. chemistry

    Ibuprofen, the active ingredient in advil, is made up of carbon, hydrogen, and oxygen atoms. When a sample of ibuprofen, weighing 5.000 g, burns in oxygen, 13.86 g of CO2 and 3.926 g of water are obtained. What is the simplest

    asked by Chris on October 17, 2006
  10. CHEM !(MOLE) PLZ HELP!

    1.How many grams are in one mole silicon? 2. how many moles are in 128 grams of oxygen gas (O2)? 3.How many molecules are in 2 moles of AIO? 4.How many moles are in 18.06 x 10 to the 23 power? 5. how many moles are in 100 grams of

    asked by tyneisha on December 6, 2012

More Similar Questions