Question

lithium nitride reacts with water to produce ammonia and lithium hydroxide, Li3N + 3H20 -> NH3 + 3LiOH what mass of lithium hydroxide is produced from 6.75 mol of lithium nitride?

Answer 1

Step 1

The reaction provided:

Li3N + 3H20 => NH3 + 3LiOH (completed and balanced)

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Step 2

Information provided:

6.75 moles of lithium nitride (Li3N)

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Information needed:

The molar mass of Lithium hydroxide (LiOH) = 23.9 approx.

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Step 3

By stoichiometry,

Procedure:

Li3N + 3H20 => NH3 + 3LiOH

1 mole Li3N --------------- 3 x 23.9 g LiOH

6.75 moles Li3N --------------- X

X = 6.75 moles Li3N x 3 x 23.9 g LiOH/1 mole Li3N

X = 484 g LiOH

Answer: 484 g of LiOH