The decomposition of a certain mass of CaCO3 gave 11.2dm3 of CO2 gas at STP. The mass of KOH required to completely neutralise the gas is:
A certain weight of pure CaCO3is made to react completely with 200 mL of an HCl solution to give 224 mL of CO2gas at STP. The normality of the HCl is
80% purity of 200 g caco3 decomposes to produce the CO2,FIND the volume of co2 gas at Stp(approximately)