Chris the chemist works in a laboratory in which the temperature is maintained at a constant 25oc and the pressure is always 100 kpa. chris needs to analyse some calcium carbonate, caco3(s), to determine whether it is pure or has been contaminated. chris will analyse the calcium carbonate by taking a small 0.00500 mole sample and adding hydrochloric acid, hcl(aq), to it until all the calcium carbonate has disappeared and no more carbon dioxide gas, co2(g), is produced. as the gas is produced it will be collected by a water displacement method. the balanced chemical equation for this reaction is known to be: caco3(s) + 2hcl(aq) → cacl2(aq) + co2(g) + h2o(l) if the sample is pure, what volume of carbon dioxide gas will be collected?