2.5 grams of a sample of chalk is strongly heated . If 0.88 grams of carbondioxide is produced, What is the percentage purity of CaCO_(3) in the sample?

2.5 grams of a sample of chalk is strongly heated . If 0.88 grams of c

1.	2.5 grams of a sample of chalk is strongly heated . If 0.88 grams of carbondioxide is produced, What is the percentage purity of CaCO_(3) in the sample?
Answer» ANSWER :0.8