97.0 mg sample of Red 40 dye was dissolved and diluted to a final volume of 1.50 L with deionized water. What is the concentration of the Red 40 dye solution in ppm?

The answer to your question is 64.7 ppm

Explanation:

Data

mass of Red 40 dye = 97 mg

Volume = 1.5 L

ppm means parts of solute in a million parts of a solution

Formula

ppm = mass of solute (mg) / volume (L)

Process

1. - Divide the mass by the volume

Substitution

ppm = 97/1.5

Simplification

ppm = 64.7