How much marble of 96.5% purity would be required to prepare 10 litres – InterviewSolution

1.	How much marble of 96.5% purity would be required to prepare 10 litres of carbon dioxide at STP when the marble is acted upon by dilute hydrochloric acid?
Answer» Solution :`underset(100g)(CaCO_(3))+2HCL rarrCaCl_(2)+H_(2)O+underset("22.4 at STP")(CO_(2))` 10 L of `CO_(2)` at STP will be obtained from pure `CaCO_(3)=(100)/(22.4)xx10=44.64g` `"Impure marble required "=(100)/(96.5)xx44.64=46.26g`

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