Mole Concept - Quiz 1

This question is on mole concept. The full work solution is available here.










Mary would like to find the percentage composition of calcium carbonate in limestone. She added 0.10 g of limestone to 30 cm3 of 0.1 mol/dm3 hydrochloric acid. The resultant solution is then titrated against 0.1 mol/dm3 sodium hydroxide solution. 12 cm3 of sodium hydroxide solution is required to completely neutralize the excess acid. Find the percentage composition of calcium carbonate in the sample of limestone.



Input the answer, without the % sign, corrected to 3 significant figures





Watch the full work solution below:

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