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Answer to Question #308965 in General Chemistry for cols

Question #308965

A water sample was reported to contain 250 ppm CaCO3. How many grams of CaCO3 is present in 4 liters of water.

1
Expert's answer
2022-03-11T10:54:03-0500

106 mL of water contains 200 g calcium carbonate.103 mL of water contains 0.250 g calcium carbonate.This corresponds to 100
0.250​=0.002 mol calcium carbonate.Hence, the concentration of calcium carbonate is 0.002M.

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