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Question
Some of the fertilizers are sodium nitrate NaNO3, ammonium sulphate (NH4)2SO4 and urea CO(NH2)2. Which of these contains the highest percentage of nitrogen?
Solution
% of N in NaNO3 = `14/85 xx 100 = 16.47%`
% of N in (NH4)2SO4 = `28/132 xx 100 = 21.21%`
% of N in CO(NH2)2 = `28/60 xx 100 = 46.66%`
So, highest percentage of N is in urea.
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