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- 1. Multiple Choice
Glycerol has a molar mass of 92.09 g/mol. A 100. g sample is 39.12 g C, 8.75 g H, and 51.12 g O. What is the molecular formula for glycerol?
C2H3O2
CH2O
C2H4O2
C3H8O3
- 2. Multiple ChoiceWhat is the empirical formula for the following molecular formula: C6H14C6H14C3H7CH2CH3
- 3. Multiple ChoiceWhat is the molecular formula if the empirical formula is C2H5 and the molecular molar mass is 58.14 g/mol?C2H5C4H10C1H2.5C4H8
- 4. Multiple ChoiceWhat is the empirical formula for the following molecular formula: C5H12C5H12CH3CH2C2.5H6
- 5. Multiple ChoiceFind the percent composition of N2S2.N: 69.6% S: 30.4%N:36% S: 75.6%N: 96.6% S: 3.4%N: 30.4% S: 69.6%
- 6. Multiple ChoiceC4H10EmpiricalMolecular
- 7. Multiple ChoiceC6H12O6EmpiricalMolecular
- 8. Multiple ChoiceWhat is the empirical formula for the following molecular formula: C5H12C5H12CH3CH2C2.5H6
- 9. Multiple Choice
What is the empirical formula of a 100. g sample of a compound containing 18.7 g of Lithium, 16.3 g of carbon and 65.0 g of oxygen?
CO2Li3
Li2CO3
Li3CO2
LiCO5
- 10. Multiple ChoiceT/F
If 2 compounds have the same empirical formula, they are the same (same properties, structure, etc.)TrueFalse - Answer choicesTagsAnswer choicesTags