The amount of alcohol in a drink is typically reported as percent alcohol by vol

Question

The amount of alcohol in a drink is typically reported as percent alcohol by volume. Volume percent or volume/volume percent (% v/v) most often is used when preparing solutions of liquids. Volume percent is defined as: % v/v = Vsolute/Vsolution × 100 Find the percent alcohol (ethanol) by volume for the vodka used in the lab by following the steps outlined in the table below I need the answer to F

. (a) given the molar mass of ethanol of 46.07 g/mol, calculate the mass of alcohol (ethanol) in the tested sample solution = 0.276 g

(b) given the density of ethanol of 0.7893g/ml, find the volume in mL of ethanol present in the diluted vodka solution = 0.360 mL

(c) record the volume of vodka used in the experiment in mL = 5.00 mL

(d) find the percent alcohol by volume (% v/v) in the diluted vodka solution = 0.25 %

(e) the diluted vodka solution was prepared by diluting 2.00 mL vodka to 100.00 mL. Calculate the dilution factor used (N:1) = 1.5%

(f) multiply the percent alcohol by volume in the diluted vodka solution by the dilution factor to obtain the % v/v alcohol in the original vodka solution =

Explanation / Answer

Percentage alcohol by volume in the diluted vodka solution = 0.25%

dilution factor in making the test solution from stock solution is = 1.5%

% v/v alcohol in the original vodka solution = 0.25 * 1.5

= 0.375%

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