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16 June, 21:36

Use the equation

2Cu+O2-->2CuO

to find how many grams of copper (II) oxide would be formed from the complete reaction of. 500 mol Cu.

Question options:

42.1

39.8

44.5

34.7

+2
Answers (1)
  1. 16 June, 22:48
    0
    (Answer) 39.77 g of copper (II) oxide would be formed from the complete reaction of 0.500 mol Cu.

    Moles of Cu reacted = 0.500 mol

    According to the balanced chemical equation, the mole ratio of copper and copper (II) oxide = 1: 1

    Therefore, 0.500 moles of copper (II) oxide would be formed from the complete reaction of 0.500 mol Cu.

    Mass of 0.500 moles of copper (II) oxide = (Number of moles x molar mass)

    = (0.500 x 79.545) g = 39.77 g.
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