Question
Asked Sep 21, 2019
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Acetic acid (HC2H3O2) is the active ingredient in vinegar. Calculate the mass percent composition of carbon in acetic acid.
Express the mass percentage to four significant figures.
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Expert Answer

Step 1

The way of representation of concentration of an element in a compound or a component of a mixture is known as mass percentage.

Step 2

The mass percentage can be calculated as follows:

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Mass of component Mass percent of component* -x100% Total mass of the solution

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Step 3

Since, mass of acetic acid and vinegar is not given so molar mass is used in calculating mass percent of the component.

Molar mass of a substan...

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Molar mass of acetic acid (CH,COOH)=2xmassof carbon atoms+4xmass of hydrogen atoms+2x mas of oxygen atom s (2x12.0107+4x100os+2x15999) gmol 60.0334 gmol

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