1.84 g of `CaCO_3` and `MgCO_3` were treated with `50 mL` of 0.8 HCl solution. Calculate the percentage of `CaCO_3` and `MgCO_3`.

Calculate the mass percentage of oxygen in CaCO_3 .

Calculate the no. of mole in 50 g of CaCO_3

If 20 g of CaCO_3 is treated with 100 mL of 20% HCl solution, the amount of CO_2 produced is

If 20 g of CaCO_(3) is treated with 100 mL of 20% HCl solution, the amount of CO_(2) produced is

Calculate the no. of mole in 150 g of CaCO_3

Calculate the no. of mole in 100 g of CaCO_3

10 grams of a mixture of CaCO_(3) and MgCO_(3) require equal weight of sulphuric acid for complete reaction. Calculate the percentage weight of MgCO(3) in the mixture.

3.75 g of a mixture of CaCO_3 and MgCO_3 is dissolved in 1 L of 0.1 M HCl to liberate 0.04 " mol of " CO_2 . Calculate (a). The percentage of each compound in the mixture. (b). The amound of acid used. (c). The amound of acid left after the reaction.