what is the percentage composition when 10g of magnesium combines with 4g of nitrogen?

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04-06-2018
Chemistry

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what is the percentage composition when 10g of magnesium combines with 4g of nitrogen?

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kenmyna kenmyna · Answer 1 · 2018-06-13T20:56:07+02:00

The % composition when 10g of magnesium combine with 4g of nitrogen is 71.43% magnesium and 28.57 % nitrogen

calculation

% composition = mass of an element / total mass x100
mass of magnesium = 10 g
mass of nitrogen = 4g

calculate the total mass used

= 10g of Magnesium + 4 g of nitrogen = 14 grams

% composition for magnesium is therefore = 10/14 x100 = 71.43 %

% composition for nitrogen is therefore = 4 /14 x100 = 28.57 %