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- A certain solution is 4.40% by mass in calcium carbonate (CaCO3) if the density of the solution is 1.02 g/mL, what mass (in grams) of calcium carbonate is contained in 53.3mL of solution?Convert 1.71×10−6 g to ngEthanol is a common laboratory solvent and has a density of 0.7890.789 g/mL. What is the mass, in grams, of 117117 mL of ethanol? mass: g