20gm of `CaCO_(3)` on decomposition gives `CO_(2)` at STP:

At STP 1g Ca CO_(3) on decomposition gives CO_(2)

x' g of KCIO_3 on decomposition gives 'y' ml of O_2 at STP. The percentage purity of KCIO_3 would be :

The volume of perhydrol which on decomposition gives 1L of O_(2) at STP is

10 gms of CaCO_3 on heating gives ____ litre of CO_2 at N.T.P.

100g of impure CaCO_(3) on heating gives 5.675 it. CO_(2) gas at STP. Find the percentage of calcium in the lime stone sample. [At. Wt, Ca=40, C=12, O=16]

How many gram of CaCO_(3) be decomposed to produce 20 litre of CO_(2) at 750 to and 27^(@) C ? .

1.5g of a mixture of CaCO_(3) and MgCO_(3) , on ignition, produces 360mL of CO_(2) at STP. Calculate the percentage composition of the mixture.

1.0 gm of mixture of CaCO_3 and MgCo_3 on one complete of decomposition gave 240 ml of CO_2 at NTP. Calculate the percentage composition of mixture.