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 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 -
**GK**, Monday, April 20, 2009 at 7:26pm
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 -
**Angeline**, Monday, April 20, 2009 at 9:04pm
Would the answer then be 971.57 grams?

## Answer this Question

## Related Questions

- Chemistry - Posted by Angeline on Monday, April 20, 2009 at 5:35pm. A few ...
- CHEM MOLES !@@! - Mole Calculation Worksheet 1) How many moles are in 15 grams ...
- chem1 WORD PROBLEM!! - 6. how many grams are in 4 moles of Be (OH)3? 7.How many ...
- Chemistry=MOLES! - I'm having trouble converting moles to grams and finding the ...
- chemistry - calculate the # of oxygen atoms in 30 grams of CaSO4 #O atoms= 4 ...
- Chemistry - If a sample of Co2(CO)8 is found to contain 6*10^-2 mol of C atoms, ...
- chemistry - what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 ...
- Chemistry - Calculate both the moles and grams in each of the following? a. 6.02...
- Chemistry - How many atoms are there in 12 grams of Carbon? 12 grams 12.01 moles...
- chemistry - 1.How many atoms are in a sample of copper with a mass of 18.46 ...