If after extraction you recover 14.7 mL of ethanol from 50.0 mL of solution. Taking into consideration a efficiency of 81.0% in the extraction process, what is the actual proof of the original alcohol solution? Respond with the correct number of signficant figures in scientific notation. (Use E notation and only 1 digit before decimal, for example, 2.5E5 for 2.5 times 10 to the power of 5)Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 10)