Mike D. answered • 06/03/21

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(1) molecular mass of CuO = 63.5 + 16 = 79.5

165.7 g of CuO = 165.7 / 79.5 moles

3 moles of CuO produces 1 mole of N2 from the equation

1 mole CuO produces 1/3 moles of N2

(165.7 / 79.5) moles produces (1/3)x (165.7 /79.5) moles of N2

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(2)

Molar mass of CH4 = 12 + 4 x 1 = 16

123.3 g of CH4 = (123.3 / 16) MOLES

For each mole of CH4 you need 2 moles of H2

So you need 2 x (123.3 /16) moles of H2

Lana T.

Thank you so much sir06/03/21