Chemistry

posted by .

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 many moles of Cu2O are needed to produce 2.3 moles of Oxygen gas?" The answer is two according to my friend, but I want to know how they reached this. Thanks for your help.

  • Chemistry -

    Convert the number of atoms to moles by dividing by 6.02x10^23 atoms/mole.
    Once you have the number of moles, you multiply by the formula mass ( grams/mole) to get the number of grams.

  • Chemistry -

    Would the answer then be 971.57 grams?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    calculate the # of oxygen atoms in 30 grams of CaSO4 #O atoms= 4 times the moles of CaSO4 * avagradoo's number. How many moles of CaSO4 is in 30 g?
  2. Chemistry=MOLES!

    I'm having trouble converting moles to grams and finding the mass of molecules. Problems I'm stuck on: What is the mass in grams of .99x10^49 Sodium Chloride Molecules?
  3. chemistry

    what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did
  4. Chemistry

    Posted by Angeline on Monday, April 20, 2009 at 5:35pm. A few questions...how many grams are in 48.7x10^24?
  5. Chemistry

    How many atoms are there in 12 grams of Carbon?
  6. chemistry

    1.How many atoms are in a sample of copper with a mass of 18.46 grams?
  7. 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?
  8. chem1 WORD PROBLEM!!

    6. how many grams are in 4 moles of Be (OH)3?
  9. Chemistry

    Calculate both the moles and grams in each of the following?
  10. CHEM MOLES !@@!

    Mole Calculation Worksheet 1) How many moles are in 15 grams of lithium?

More Similar Questions