Question

The percentage of nitrogen in hno3 is

Answer 1

If you mean the mass percent, the equation for finding it is
m
a
s
s
%
=
[ (mass of element)
/
(mass of substance) ]
⋅
100
%
The total mass of
H
N
O
3
is
≈
63.02
g
m
o
l
. The mass of nitrogen is about
14.01
g
m
o
l
.
14.01
63.02
⋅
100
%
=
22.23
%
N by Mass

Answer 2

Total atomic mass of hno3 = 1+14+16×3
= 63
℅ of N = 14/63 ×100
= 22.22%
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