5.Dissolving 3.00 g of an impure sample of CaCO3 in an excess of HCl acid produced 0.656 L of CO2 (measured at 20°C and 792 mmHg). Calculate the percent by mass of CaCO3 in the sample. (Molar mass of Ca = 40.08 g/mol; C = 12.01 g/mol; O = 16.00 g/mol) (Final answer: 3 significant figures)

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Chapter5: The Gaseous State
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Problem 5.73QP: Calcium carbide reacts with water to produce acetylene gas. C2H2. CaC2(s)+2H2O(l)Ca(OH)2(aq)+C2H2(g)...
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5.Dissolving 3.00 g of an impure sample of CaCO3 in an excess of HCl acid produced 0.656 L of CO2 (measured at 20°C and 792 mmHg). Calculate the percent by mass of CaCO3 in the sample. (Molar mass of Ca = 40.08 g/mol; C = 12.01 g/mol; O = 16.00 g/mol) (Final answer: 3 significant figures) 

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