Oblicz zawartosć procentową azotu w kwasie azotowym (V).
HNO3=1u+14u+3*16u=63u
14u-x
63-100%
x=22,22%
masa HNO₃ = 1u + 14u + 3*16u = 63u
masa N = 14u
63u HNO₃--------stanowi-------100%
to 14u N-----------stanowi--------X%
X= 14u * 100% : 63u ≈ 22,2% azotu
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HNO3=1u+14u+3*16u=63u
14u-x
63-100%
x=22,22%
masa HNO₃ = 1u + 14u + 3*16u = 63u
masa N = 14u
63u HNO₃--------stanowi-------100%
to 14u N-----------stanowi--------X%
X= 14u * 100% : 63u ≈ 22,2% azotu