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The Term Proof Is Defined as Twice the Percent by Volume

Question 20

Multiple Choice

The term proof is defined as twice the percent by volume of pure ethanol in solution. Thus, a solution that is 95% (by volume) ethanol is 190 proof. What is the molarity of ethanol in a 92 proof ethanol/water solution? The term proof is defined as twice the percent by volume of pure ethanol in solution. Thus, a solution that is 95% (by volume) ethanol is 190 proof. What is the molarity of ethanol in a 92 proof ethanol/water solution? A) 0.46 M B) 0.80 M C) 17 M D) 0.92 M E) 8.0 M


A) 0.46 M
B) 0.80 M
C) 17 M
D) 0.92 M
E) 8.0 M

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