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

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We're being asked to determine the mass percent of a 2 m H3PO4

For this problem follow the steps:

Step 1. Establish the composition of 2 m H3POand formula of mass percent

Step 2.  Determine the mass of H3PO4

Step 3.  Determine the mass of solvent

Step 4.  Calculate mass percent

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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?