A 0.125g sample of gypsum was titrated to determine the percentage of calcium carbonate with 50 mL of 0.2M HCl. percentage of calcium carbonate was titrated with 50mL of 0.2M HCl. The excess HCl was titrated with 32.12 mL of 0.25M NAOH. Calculate the percent percent calcium carbonate in the gypsum sample.
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