Consider the reaction: CuCO3.Cu(OH)2(s) → 2CuO(s) + H2O(2) + CO2(g)
1. What is the molar mass of CuCO3.Cu(OH)2?
2. What total mass of H2O and CO2 will be produced when 1.000 mole of CuCO3Cu(OH)2 is decomposed?
3. A 23995 g mixture containing malachite and an inert ingredient lost 02997 g of H2O and CO when decomposed by heating to constant mass.
a. How many moles of malachite in the mixture produced this mass of CO2 and H2O?
b. How many grams of malachite were present in the mixture?
c. What mass percent of malachite was in the mixture?
4. What do you predict would happen if the crucible were placed on the laboratory bench rather than in the desiccator while it cooled?