Arkansas State University Department of Chemistry and Physics

1. What is the Mn:O mole ratio in Mn₂O₅?

2. What is the C:H mole ratio in C₄H₁₀?

3. How many moles of C is in 2.4 moles of C₆H₆?

4. How many moles of C is needed to react with 5.0 moles of H to form C₃H₈?

5. How many F atoms are in 1 mole of F?

6. How many F atoms are in 1 mole of CF₄?

7. How many moles of Ge would you have if you have 2.4 x 10¹⁴ atoms of Ge?

8. If you have 4.5 x 10²⁰ molecules of SnO₂, how many moles of O do you have?

9. How many moles of H are in 2.5 x 10²³ molecules of C₂H₆O?

10. How many atoms of C is in 2.5 x 10²³ molecules of C₂H₆O?

11. What is the mass of 1.0 mol of C?

12. What is the mass of 1.0 mol of Cu?

13. What is the mass of 3.0 mol of Cu?

14. How many moles is in 12.01 g of C?

15. How many moles is in 12.01 g of Fe?

16. How many atoms are in 63.54 g of Zn?

17.  What is the mass, in g, of 6.022 x 10²⁴ atoms of S?

18. How many moles of Mo is in 96 g of Mo?

19. How many moles of S is in 96 g of S?

20. What is the mass of 96 mol of Mo?

answers