Calculate the mass in grams of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assuming the standard is known to have a hardness of 75.0 ppm (hardness due to CaCo3)

density of the sample is. 9977 g/mL and the molar mass of calcium carbonate is 100.0 g/mol

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Chemistry

Kianna Flowers

26 September, 21:51

Calculate the mass in grams of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assuming the standard is known to have a hardness of 75.0 ppm (hardness due to CaCo3)

density of the sample is. 9977 g/mL and the molar mass of calcium carbonate is 100.0 g/mol

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Mira Gonzales · Answer 1

The units of ppm means parts per million. Also, It is equivalent to milligrams per liter. It is one way of expressing concentration of a substance. It u sually used to describe the concentration of something in water or soil. We calculate the mass of CaCO3 as follows:

Mass = 75 mg/L (.050 L) = 3.75 mg CaCO3