Question

Given that the molar mass of acetic acid is 60.0 grams and the density of the vinegar solution is 1.01 grams per milliliter determine the mass percent of acetic acid in the vinegar

Answer 1

If the grams of acetic acid is given, we can use this to calculate for the mass percent acetic acid in the vinegar. 

The formula is:

%acetic acid = (grams of acetic acid in vinegar)/ grams of vinegar x 100%

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Answer 2

Answer:

The mass percent of acetic acid in the vinegar is 4,71% (m/m)

Explanation:

Vinegar is an aqueous solution of acetic acid and other different chemicals that are flavorings. Vinegar typically contains 5% acetic acid by volume.  That means 5mL of acetic acid per 100mL of solution.

To obtain the mass percent of acetic acid you must convert mL of acetic acid and solution to grams with densitiy.

The density of solution is 1,01 g/mL and the density of acetic acid is 1,05 g/mL. Thus, mass percent in vinegar is:

$\frac{5gAceticAcid}{100mLSolution}$×$\frac{1mLSolution}{1,01gSolution}$×$\frac{1mLAceticAcid}{1,05gAceticAcid}$×100 = 4,71% (m/m)

I hope it helps!