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An aqueous solution has a mass of 490 grams containing 8.5 103 gram of calcium ions. The concentration of calcium ions in this solution is (1) 4.3 ppm (3) 17 ppm (2) 8.5 ppm (4) 34 ppm
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An aqueous solution has a mass of 490 grams

containing 8.5 103 gram of calcium ions. The
concentration of calcium ions in this solution is
(1) 4.3 ppm (3) 17 ppm
(2) 8.5 ppm (4) 34 ppm

User Robin Maben
by
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1 Answer

4 votes
One way of expressing concentration is by expressing it by parts per million or ppm. Parts per million is equal to 1 milligram of solute per kilogram of solution. The problem is solved as follows:
ppm = .0085103 mg / .490 kg = 0.017 ppm
User Zeevb
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