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| 1. |
1.4g of a sample of chalk containing clay as impurity were treated with excess of did hcl . Volume of co2 evolved when measured at 15^°c 768mm pressure was 282 cm .calculate the percentage purity of sample. |
| Answer» 1.4g of a sample of chalk containing clay as impurity were treated with excess of did hcl . Volume of co2 evolved when measured at 15^°c 768mm pressure was 282 cm .calculate the percentage purity of sample. | |