Calculate the mass percentage composition of the elements in nitric acid(H=1,N=14,O=16)
Answers
HNO3
Then divide the mass of each atom by the total mass to find the percentage.
Explanation:
H=1×1=1g
N=1×14=14g
O=3×16=48g
Adding these total
1+14+48=63g
%H=1/63
# 1/63 = 1.5% H
%N=14/63
# 14/63 = 22% N
%O=48/63
# 48/63 = 76% O
Given:
Nitric Acid Formula = HNO3
Molar mass of Hydrogen = 1
Molar mass of Nitrogen = 14
Molar mass of Oxygen = 16
To Find:
The mass percentage of the elements in nitric acid.
Formula that is used for calculating mass percentage of an element:
= Mass of The Element / total mass of the compound x 100
Calculating:
Calculating total mass of HNO3
= 1 x 1 + 14 x 1 + 16 x 3
= 1 + 14 + 48
= 63
Calculating the mass percentage of Nitrogen in HNO3
= 1/63 x 100
= 1.586 %
Therefore, the percentage of Nitrogen in HNO3 is 1.596 %
Calculating the mass percentage of Oxygen in HNO3
= 48/63 x 100
= 76.19 %
Therefore, the mass percentage of Oxygen in HNO3 is 76.19 %
Calculating the mass percentage of Nitrogen in HNO3
= 14 / 63 x 100
= 22.22 %
Therefore, the mass percentage of Nitrogen in HNO3 is 22.22 %