2) Copper metal can be recovered from an ore, CuCO3, by the decomposition reaction:
2CuCO3 (s)-→ 2Cu(s) + 2CO2 (g) + O2 (g)
What is the mass of a sample of "impure" ore if it is 47.5 %by mass CuCO3 and produces
350.0 grams of Cu? (Assume complete decomposition of CuCO3.) (5 points).
