1. H2OH2OH2OH2O Find the molar mass of: Solution: 1.00794 (2)H +15.9994O 18.0153g/mol

2. HF Find the molar mass of: Solution: 1.00794 H +18.99840F 20.00634g/mol

3. KCl Find the molar mass of: Solution: 39.0983 K + 35.453Cl 74.551g/mol

4. CO 2 Find the molar mass of: Solution: 12.0107 C +15.9994 (2)O 44.0095g/mol

5. Li 2 O Find the molar mass of: Solution: 6.941 (2)Li +15.9994O 29.881g/mol

6. Zn(OH) 2 Find the molar mass of: Solution: 65.409Zn 15.9994 (2)O +1.00794 (2)H 99.424g/mol

7. Zn 3 (PO 4 ) 2 Find the molar mass of: Solution: 65.409 (3)Zn 30.97376 (2)P + 15.9994 (8)O 386.170g/mol

8. Al(OH) 3 Find the molar mass of: Solution: 26.981538 Al 15.9994 (3)O + 1.00794 (3)H 78.0036g/mol

9. Al 2 (SO 4 ) 3 Find the molar mass of: Solution: 26.981538 (2)Al 32.065 (3)S + 15.9994 (12)O 342.151g/mol

10. sulfur trioxide Find the molar mass of: Find the formula first: SO 3 then find the atomic masses: 32.065 S + 15.9994 (3)O 80.063g/mol

11. hydrogen peroxide Find the molar mass of: Find the formula first: 34.0147g/mol H2O2H2O2 then find the atomic masses: 1.00794 (2)H + 15.9994(2) O

12. Lead(II) hydroxide Find the molar mass of: Find the formula first: 241.2g/mol Pb(OH) 2 then find the atomic masses: 207.2 Pb 15.9994 (2)O + 1.00794(2)H

13. ammonium hydroxide Find the molar mass of: Find the formula first: 35.0458g/mol NH 4 OH then find the atomic masses: 14.0067 N 15.9994 O + 1.00794(5)H

14. nitric acid Find the molar mass of: Find the formula first: 63.0128g/mol HNO 3 then find the atomic masses: 1.00794 H 14.0067 N + 15.9994 (3)O

15. hydrochloric acid Find the molar mass of: Find the formula first: 36.461g/mol HCl then find the atomic masses: 1.00794 H + 35.453 Cl

16. iron(III) chloride Find the molar mass of: Find the formula first: 162.204 g/mol FeCl 3 then find the atomic masses: 55.845 Fe + 35.453 (3) Cl

17. dinitrogen pentoxide Find the molar mass of: Find the formula first: 108.0104g/mol N2O5N2O5 then find the atomic masses: 14.0067(2)N + 15.9994(5)O

18. hydrobromic acid Find the molar mass of: Find the formula first: 80.912 g/mol HBr then find the atomic masses: 1.00794 H + 79.904 Br

19. lead(IV) oxide Find the molar mass of: Find the formula first: 239.2g/mol PbO 2 then find the atomic masses: 207.2 Pb + 15.9994 (2)O

20. cobalt(II) chloride Find the molar mass of: Find the formula first: 129.839 g/mol CoCl 2 then find the atomic masses: 58.9332 Co + 35.453 (2) Cl