How do you calculate the percent composition by mass of an element?

How do you calculate the percent composition by mass of an element?

The equation for percent composition is (mass of element/molecular mass) x 100.

What is the molar mass of liclo3?

90.39xa0g/mol

What is the percent composition by mass of each element in Na2CO3?

The percent composition is the percent by mass of each element in a compound. It is calculated in a similar way to that of the composition of the peanut butter.

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