Question

Asked Sep 20, 2019

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Mg3N2 +3H2O -> 3MgO+2NH3

Weight of empty crucible and cover : 23.480 g

Weight of crucible, cover, MgO and Mg_{3}N_{2} : 24.208 g

Weight of crucible, cover, MgOand addition of H_{2}O and heat : 24.211 g

Calculate the change in mass.

Calculate the number of moles of Mg_{3}N_{2}.

Calculate the number of grams of Mg_{3}N_{2}.

Calculate the weight % of Mg_{3}N_{2}.

Calculate the weight % og MgO

Step 1

The data are given as follows:

Step 2

The change in mass can be calculated as follows:

Step 3

Weight of Mg3N2 can be calculated...

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A: Change in the mass is