Grams – Moles Calculations
Molar Conversions
Find the number of moles for the following (use dimensional analysis, use correct units and sig. figs. to receive credit):
1. 30 grams of H3PO4
2. 110 grams of NaHCO3
3. 12.3 grams of CO2
4. 564 grams of copper
5. 1.1 grams of FeCl3
Find the number of grams for the following (use dimensional analysis, use correct units and sig. figs. to receive credit):
6. 4 moles of Cu(CN)2
7. 5.6 moles of C6H6
8. 21.3 moles of BaCO3
9. 6.6 moles of ZnO
10. 88.4 moles of NI3
Calculate the molar mass for the following chemicals (show your work, use correct units and sig. figs. to receive credit):
11. Cl2
12. BeCl2
13. BF3
14. Mg(OH)2
15. UF6
16. H3PO4
17. (NH4)SO4
18. CH3COOH
19. Pb(NO3)2
Solve the following problems following (use dimensional analysis, use correct units and sig. figs. to receive credit):
20. How many moles are in 3.4 x 1023 molecules of H2SO4?
21. How many molecules are there in 0.655 moles of C6H14?
22. How many moles are in 5.5 x 1023 molecules of As2O3?
23. How many formula units are in 2.3 moles of AgNO3?
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