Question

A student masses 40 g copper(II) oxide CuO, a black solid, and heats the substance using a Bunsen burner until the sample turns a reddish color. The chemical equation for the reaction is given below. According to the unbalanced reaction, the copper(II) oxide decomposes to produce copper(I) oxide and oxygen. ___CuO(s) ==> ___Cu2O (s)+___ O2(g) What is the exact amont of Oxygen produced ?

Answer 1

Answer:

4g

Explanation:

If we balance the reaction we find that 4cuo-> 2cuo+o2 so for 4 moles of cuo we get 1 mole of o2 so for 40gm we get 2gm approx