Need help on chemistry.?

Question

Pls help me how to find the wieght of CU and Weight of C02 if 238.5g of black cupric oxide is heated with enough charcoal powder till the whole metal oxide is reduced. ? ( At weight of cu = 63.5) ? Thanks for your assistnace

Answer 1

using molar masses:

238.5 g CuO @ 63.55 g Cu / 79.545 g CuO = 190.5g

your first answer: 109.5 g of Cu

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2 CuO & C --> 2Cu & 1 CO2

238.5 g CuO @ 44.01g CO2 / (2)(79.545 g CuO) =

your second answer: 65.98g of CO2