Problem: Which of the following represents the mass percent of H3PO4 (MM = 98) in a 2.00 m aqueous H3PO4 solution?A. 19.6%B. 16.4%C. 9.8%D. 8.2%

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We’re being asked to calculate the mass percent of H3PO4 (MM = 98) in a 2.00 m aqueous H3PO4 solution.

Aqueous solution means that water is the solvent, hence CdSO4 is the solute.


Mass or weight percent (% by mass) is the percentage of a given element or compound within a solution. 

The equation used to calculate for mass percent is shown below:

mass percent = mass componenttotal mass×100

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Problem Details

Which of the following represents the mass percent of H3PO4 (MM = 98) in a 2.00 m aqueous H3PO4 solution?

A. 19.6%
B. 16.4%
C. 9.8%
D. 8.2%

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