Ammonia Can Be Made by Reaction of Water with Magnesium $\to$

question 85

Multiple Choice

Ammonia can be made by reaction of water with magnesium nitride as shown by the following unbalanced equation: Mg₃N₂(s) + H₂O(l) $\to$ Mg(OH) ₂(s) + NH₃(g)
If this process is 80% efficient,what mass of ammonia can be prepared from 19.0 kg magnesium nitride?

• A)2.6 kg NH₃
• B)6.4 kg NH₃
• C)5.1 kg NH₃
• D)3.2 kg NH₃
• E)15 kg NH₃

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