Acid reacts with limestone to form calcium salts.A piece of limestone weighing 23g reacts completely with 100 cm3 of 1.0 mol dm-3 ethanoic acid.What is the percentage purity of the piece of limestone?How to calculate the percentage purity of limestone?
I think it would be the answer:
CaCO3+2CH3COOH---------%26gt; Ca(CH3COOH)2 + H2CO3
molar mass of CaCO3 is 100
P/100 x (23/100)=(0.1 x 1)/2
P=21.73%
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