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- 1. Multiple Choice
What is the molar mass of Ba(OH)2?
153.49 g/mol
201.97 g/mol
56.24 g/mol
- 2. Multiple Choice
Convert 50.0 grams of H2O to moles of H2O.
901 moles
18.02 moles
2.77 moles
- 3. Multiple Choice
What mass of calcium chlorate, Ca(ClO3)2, is equivalent to 0.750 moles of the substance?
155.24 grams
206.98 grams
128.65 grams
- 4. Multiple Choice
2.50 moles of sodium sulfate, Na2SO4, are added to a solution. What mass of the substance was this?
297.65 grams
142.05 grams
355.13 grams
- 5. Multiple Choice
What is the molar mass of aluminum carbonate, Al2(CO3)3?
54.99 g/mol
233.99 g/mol
185.99 g/mol
- 6. Multiple Choice
3.0 moles of sodium hydroxide, NaOH, is equal to what mass?
about 40 grams
about 23 grams
about 120 grams
- 7. Multiple Choice
When converting a mass to moles, what unit must be in the denominator of the conversion factor?
grams
moles
grams/mole
- 8. Multiple Choice
176 grams of carbon dioxide, CO2, is equal to how many moles of the substance.
about 44 moles
about 4 moles
about 1 mole
- 9. Multiple Choice
When converting a moles to mass, what unit must be in the denominator of the conversion factor?
grams
moles
grams/mole
- 10. Multiple Choice
Convert 13.25 grams of magnesium nitrate, Mg(NO3)2, to moles of the substance.
0.100 mole
0.0986 mole
0.0893 mole
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