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April 19, 2014

Homework Help: chemistry

Posted by Ashley on Wednesday, October 31, 2012 at 11:33pm.

A TUMS tablet was dissolved in 110.00 ml of 0.1022 M HCl and analyzed for CaCO3 according to the procedure described in the lab manual. It took 7.48 ml of 0.1005 M NaOH to reach the endpoint. Calculate the mass of CaCO3 in TUMS tablet to the correct number of significant figures

CaC03(aq)+ 2HCl(aq) = CaCl2 (aq)+ H2O(l)+ CO2(g)

NaOH(aq) + HCl(aq) = NaCl(aq)+ H20(l)

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