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Mass, Volume and Mole Relationship

How many mole...

Question

How many moles of $N_{2}$ are needed to produce 18 moles $N H_{3}$ in the reaction?
$N_{2} + 3 H_{2} \to 2 N H_{3}$ ?

A

9

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B

18

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C

3

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D

2

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E

1

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Solution

The correct option is A 9
2 moles of ammonia are obtained from 1 mole of nitrogen.
18 moles of ammonia will be obtained from $\frac{18}{2} = 9$ moles of nitrogen.

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