Arkansas
State University
Department
of Chemistry
and
Physics |

Worksheet 1 |
Moles |

**1. What is the Mn:O mole ratio in Mn _{2}O_{5}?**

**2. What is the C:H mole ratio in C _{4}H_{10}?**

**3. How many moles of C is in 2.4 moles of C _{6}H_{6}?**

**4. How many moles of C is needed to react with 5.0 moles of H to
form C _{3}H_{8}?**

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

**6. How many F atoms are in 1 mole of CF _{4}?**

**7. How many moles of Ge would you have if you have 2.4 x 10 ^{14}
atoms of Ge?**

**8. If you have 4.5 x 10 ^{20} molecules of SnO_{2},
how many moles of O do you have?**

**9. How many moles of H are in 2.5 x 10 ^{23} molecules of
C_{2}H_{6}O?**

**10. How many atoms of C is in 2.5 x 10 ^{23} molecules of
C_{2}H_{6}O?**

**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 10 ^{24} 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?**