How is the percent composition by mass determined?

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04-01-2021
Chemistry

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How is the percent composition by mass determined?

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GayPride01 GayPride01 · Answer 1 · 2021-01-04T08:49:33-05:00

GayPride01 GayPride01

04-01-2021

Answer:

Percent composition is calculated from a molecular formula by dividing the mass of a single element in one mole of a compound by the mass of one mole of the entire compound.

Explanation:

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aliasger2709 aliasger2709 · Answer 2 · 2022-08-09T06:08:15-04:00

The percent composition depicts the percent of an individual element by mass. The percent composition by mass is determined by the ratio of individual mass to the molar mass of the whole compound.

What is mass percent composition?

Mass percent composition is defined as the ratio of the mass of an element in a mole to the molar mass of a compound and multiplied by 100. This allows knowing the mass of an element in a compound or a molecule to the rest of the compound.

First, the molar mass of the whole compound is calculated by adding the individual masses and then used in an equation to get divided by the individual mass of the involved element.

The mass percent composition is given as,

% by mass = mass of element / molar mass of compound × 100%

Therefore, the mass percent composition involves the mass of the individual elements and molar mass.

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What is mass percent composition?

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