# DL Moles Mass Worksheet ```Mole conversion worksheet
Name:
Calculate molar masses from these formulas
(note: if using different periodic table, please include two decimal places, round if
needed. Ex: 13.888 = 13.89, or 9 = 9.00)
1. H2O ___________
6. NaCl ____________
11. NH4C2H3O2 __________
2. CO2 ___________
7. KOH ____________
12. Cu(NO3)2 ____________
3. N2 ____________
8. CaSO4 ___________
13. Co3(SO4)2 ____________
4. S8 _____________
9. MgF2 ____________
14. H3PO4
____________
5. AlBr 3 __________
10. Fe2S3 ___________
15. C6H12O6
____________
To help with the next two sections, reminder that you can use proportions as follows:
molar mass--&gt; # grams of substance = # grams of substance
1 mole of substance
# moles of substance
Using molar mass from the first section and placing it on the left side of your proportion,
you will either be provided # of moles or # of grams on the right side and solving for the
opposite item like an algebra problem.
Given # moles of substance, find # grams of substance
Using the molar masses you found in the first section, find how many grams of a
substance there are based on the number of moles given. If your answers go beyond the
hundredths place, round to the nearest hundredth (ex: 7.777777777 becomes 7.78).
1. 2.00 moles NaCl __________
6. 7.13 moles H2O _____________
2. 3.75 moles KOH __________
7. 0.415 moles C6H12O6 __________
3. 0.63 moles CO2 __________
8. 0.89 moles H3PO4 ___________
4. 1.50 moles MgF2 __________
9. 1.18 moles Fe2S3 _____________
5. 0.0177 moles Cu(NO3)2 _____________
10. 4.0 moles Co3(SO4)2 ________
Mole conversion worksheet
Name:
Given # grams of substance, find # moles of substance
Using the molar masses you found in the first section, find how many moles of a
substance there are based on the number of grams given. If your answers go beyond the
hundredths place, round to the nearest hundredth (ex: 1.1111111 becomes 1.11).
1. 36.1 g H2O _____________
6. 15.4 g NH4C2H3O2 _________________
2. 24.5 g H3PO4 ___________
7. 49.09 g MgF2 ______________________
3. 118 g C6H12O6 __________
8. 4.667 g KOH ______________________
4. 64 g S8 _______________
9. 274 g CaSO4 _____________________
5. 126 g N2 _______________
10. 336 g AlBr 3 _____________________
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