How to do a. calculates the intensive unit ppm
from formula ppm (mass) = (mass / mass of solute solution) x 10 6
from solving the mass of the melt. = 2 x 10 - 4 mass of solution = 100
instead of ppm (mass) = (2 x 10 - 4 / 100) x 10 6
= 2.
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