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What is the concentration of a solution, in parts per million, if 0.02 gram of Na3PO4 is dissolved in 1000 grams of water? (1) 20 ppm (3) 0.2 ppm (2) 2 ppm (4) 0.02 ppm
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What is the concentration of a solution, in parts per million, if 0.02 gram of Na3PO4 is dissolved in 1000 grams of water?

(1) 20 ppm (3) 0.2 ppm
(2) 2 ppm (4) 0.02 ppm

User Thivan Mydeen
by
8.4k points

1 Answer

3 votes
ppm = mass of solute in mg / mass of solvent in kg

0.02 x 1000 = 20 mg (solute )

1000 / 1000 = 1.0 kg

ppm = 20 / 1.0

= 20 ppm

Answer (1)

hope this helps!


User Jack Kinsella
by
8.1k points
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