If the mass of one mole of hydrogen is 1.01 grams; phosphorus, 30.97 grams; and oxygen, 16.0 grams, what is the molar mass of phosphoric acid (H3PO4)?

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asked Oct 13, 2017 73.0k views

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If the mass of one mole of hydrogen is 1.01 grams; phosphorus, 30.97 grams; and oxygen, 16.0 grams, what is the molar mass of phosphoric acid (H3PO4)?

Physics
high-school

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Simply adding the molar mass of the atoms together.
1.01*3+30.97+16.0*4=98.0

Drew Gallagher answered Oct 20, 2017

by Drew Gallagher

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