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A 0.450 gram sample of impure CaCO3 (s) is dissolved in 50.0 mL of 0.150 M...

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Chemistry

A 0.450 gram sample of impure CaCO3 (s) is dissolved in 50.0 mLof 0.150 M HCl (aq). The equation for the reaction is CaCO3(s) +2HCl --> CaCL2 (aq) + H2O (l) + CO2 (g). The excess HCl (aq) istitrated by 7.20 mL of 0.125 M NaOH (aq). Calculate the masspercentage of CaCO3 (s) in the sample.

Answer & Explanation Solved by verified expert
3.6 Ratings (409 Votes)
Moles Liter Molarity mol Molarity Volume in liters Excess HCl x 000720 L 0125 M    See Answer
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