Question

calculate the percentage composition of Na2So3.[atomic weight na =23, s = 32 , o=16



please answer ​

Answer 1

Answer:

mass % of Na , S and O is given by 36.50, 25.39 and 38.11 %

Explanation:

Formula unit mass of Na₂SO₃ :

=2× Atomic mass of Na+ Atomic mass of sulphur +3×Atomic mass of O

=2×23u+32u+3×16u

=126u

mass % of Na=(46/126)×100=36.50%

Mass % of S=(32/126)×100 =25.39 %

Mass % of O=(48/126)×100= 38.11 %