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29 September, 08:33

How many grams of lithium hydroxide are produced when 492 grams of water reacts with lithium nitride

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  1. 29 September, 10:29
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    Mass = 653.84 g

    Explanation:

    Given dа ta:

    Mass of water = 492 g

    Mass of lithium hydroxide = ?

    Solution:

    Chemical equation:

    Li₃N + 3H₂O → 3LiOH + NH₃

    First of all we will calculate the number of moles of water.

    Number of moles of water:

    Number of moles = mass / molar mass

    Number of moles = 492 g / 18 g/mol

    Number of moles = 27.3 mol

    Now we will compare the moles of water with lithium hydroxide.

    H₂O : LiOH

    3 : 3

    27.3 : 27.3

    Mass of lithium hydroxide:

    Mass = number of moles * molar mass

    Mass = 27.3 mol * 23.95 g/mol

    Mass = 653.84 g
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