Answer:
The answer to your question is 64.7 ppm
Step-by-step 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