percent composition

Front

What is percent composition in chemistry?

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Percent composition is the percentage by mass of each element in a compound, calculated by dividing the mass of the element by the total mass of the compound and multiplying by 100.

Front

How do you calculate the percent by mass of an element in a compound?

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To calculate the percent by mass of an element in a compound, use the formula: (mass of the element in 1 mole of the compound / molar mass of the compound) x 100.

Front

What is the percent by mass of calcium in CaF₂?

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The percent by mass of calcium in CaF₂ is 51%.

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What is the percent by mass of fluorine in CaF₂?

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The percent by mass of fluorine in CaF₂ is 49%.

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What is the percent by mass of sodium in NaCl?

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The percent by mass of sodium in NaCl is 39%.

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What is the percent by mass of chlorine in NaCl?

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The percent by mass of chlorine in NaCl is 61%.

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What is the percent by mass of magnesium in MgO?

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The percent by mass of magnesium in MgO is 60%.

Front

What is the molar mass of CaF₂?

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The molar mass of CaF₂ is 78 g/mol.

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What is the molar mass of NaCl?

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The molar mass of NaCl is 58.44 g/mol.

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What is the molar mass of MgO?

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The molar mass of MgO is 40.30 g/mol.