A 0.210 g sample of an impure CaCO₃ solid is treated with 25.00 mL of 0.1000 M HCl
CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases
Problem
A 0.210 g sample of an impure CaCO₃ solid is treated with 25.00 mL of 0.1000 M HCl. After the reaction is complete, the excess acid requires 6.20 mL of 0.1000 M NaOH to be neutralized. Determine the mass percent of CaCO₃ in the original sample.