Mole conversion worksheet All calculated answers require units 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--> # 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 All calculated answers require units 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 _____________________