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Introductory Chemistry (CHEM1003 ) Mole Ratios Worksheet

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Sandra Watson
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Mole ratios worksheet – questions and answers

University

University of Western Australia

c. Cu/ H2O
d. NH3/Cu
e. Cu/ CuO
I. If you had 7 moles of CuO how many moles of NH3 would you
need to react it all?
II. If you needed to produce 6 moles of Cu(s) how many moles of NH3
would you need to react?
III. If you have 700.0kg of NH3 what mass of N2 will you produce?

I. If you use 1 mole of CH4 how many moles of H2 could be produced?

II. If 7 moles of H2 were produced, how many moles of H2O would be
required?

III. If 62.0g of CO were produced, how many moles of CH4 would have been
required?

2. Let’s consider the equation
8 H2(g) + S8(g) ⇋ 8H2S(g)

I. If you had 3.5 moles of H2 available and excess S8 what is the most
number of moles of H2S you could produce?

II. What would be the mass of this maximum yield?

III. If you wanted to produce 3.00kg of H2S what mass of S8 would be
required?

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Introductory Chemistry (CHEM1003 ) Mole Ratios Worksheet

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