Question

calculate the percentage composition of the elements in HNO3 ( H=1 ,N=14,O= 16)​

Answer 1

Answer:

ANSWER

Nitric acid HNO

3

- mol wt. =1+14+48

=63 g

Mass percentage of hydrogen =

63

1

×100=1.586%

Mass percentage of nitrogen =

63

14

×100=22.22%

Mass percentage of oxygen =

63

48

×100=76.19%

Hence the percentage of H,Nand O are 1.58%,22.22% and 76.19% respectively.