What is the percentage composition by mass of nitrogen in calcium nitrate?

1 Answer
anor277
Nov 26, 2017

#%N="Mass of nitrogen in one mole of salt"/"Mass of one mole of calcium nitrate"xx100%#

Explanation:

So we gots #Ca(NO_3)_2#, whose formula mass #=164.09*g*mol^-1#

#%N=(2xx14.01*g*mol^-1)/(164.09*g*mol^-1)~=20%#

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