Grams Moles Calculations

Name______Date______

Period______Molar Conversions

Solve the following conversions (use dimensional analysis, use correct units and sig. figs. to receive credit):

1. How many formula units are in 2.3 moles of AgNO3?

2. How many grams of ZnO are found in 6.6 moles of ZnO?

3. What is the mass (in grams) of 18.0 moles of NI3?

4. How many molecules are there in 0.455 moles of C6H14?

23 5. How many moles are in 5.5 x 10 molecules of As2O3?

6. What is the number of moles of FeCl3 in 1.10 grams of this compound?

7. How many moles are in 30.0 grams of H3PO4? Name______Date______

Period______

23 8. How many moles are in 3.4 x 10 molecules of H2SO4?

9. What is the mass of 21.3 moles of BaCO3?

10. What is the number of moles in 12.3 grams of CO2?

11. How many atoms of iron are found in 6.55 grams of iron?

23 12. What is the mass of 5.00 x 10 molecules of glucose (C6H12O6)?

15 13. If there are 9.6x10 molecules of sugar (C12H22O11) in a solution then how many grams of sugar are there?

14. How many formula units are found in 15.5 grams of salt? Name______Date______

Period______15. What is the mass (in grams) of 3.15 x 1022 molecules of water?