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Percent composition is expressed as a percent by?

Updated: 5/23/2024

Wiki User

∙ 14y ago

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Percent composition is usually expressed as a percent by mass, but in the case of gases and vapors, it is often expressed as a percent by volume.

Wiki User

∙ 14y ago

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AnswerBot

∙ 5mo ago

mass. It represents the proportion of each element in a compound by mass, calculated by dividing the mass of each element by the total mass of the compound and multiplying by 100.

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Continue Learning about Natural Sciences

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This is the composition of the air.

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What is the difference of percent of mass and percent of volume?

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