Posted by **katie** on Tuesday, November 29, 2011 at 3:12am.

What is the mass percent of a solution if 42.9 grams of aspirin is dissolved into 175 mL of ethanol? (Density of ethanol is 0.789 g/mL)

1. 31.1 %

2. 24.5 %

3. 23.7 %

4. 19.7 %

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