High School

A 3.63 g piece of limestone contains 2.54 g of CaCO₃. Based on these results, what is the mass percentage of CaCO₃ in the limestone?

Answer :

The mass percentage of CACO3 in limestone is 70%.

Given:

Mass of limestone = 3.63 g

Mass of CACO3 = 2.54 g

To find:

Mass percentage of CACO3 in limestone

Solutions:

Mass percentage of CACO3 = (Mass of CACO3/ Total mass of Limestone) × 100

Mass percentage of CACO3 = (2.54/3.63) × 100

Mass percentage of CACO3 = 70%

Therefore, the mass percentage of CACO3 in limestone is 70%.

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