A titration of vinegar with a solution of NaOH was performed. If 3.45 mL of vinegar needs 44.0 mL of 0.140 M NaOH to reach the equivalence point in a titration, Calculate the mass of acetic acid present in the vinegar sample: mastering chemistry answers

The mass of acetic acid present in the vinegar sample is 0.370 grams

Explanation:

To calculate the number of moles for given molarity, we use the equation:

Molarity of NaOH solution = 0.140 M

Volume of solution = 44.0 mL

Putting values in above equation, we get:

The chemical equation for the reaction of acetic acid and NaOH follows:

By Stoichiometry of the reaction:

1 mole of NaOH reacts with 1 mole of acetic acid

So, 0.00616 moles of NaOH will react with = of acetic acid

To calculate the number of moles, we use the equation:

Molar mass of acetic acid = 60 g/mol

Moles of acetic acid = 0.00616 moles

Putting values in above equation, we get:

Hence, the mass of acetic acid present in the vinegar sample is 0.370 grams

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.