Question

A compound has the following percentage composition : Na = 18.60%, S = 25.80%, H = 4.03% and
0 =51.58%. Calculate the molecular formula of the crystalline salt assuming that all the hydrogen
in the compound is in combination with the oxygen as water of crystallisation. Molecular weight of
the compound is 248. [Na = 23, S = 32, H = 1, 0 = 16]​

Answer 1

Answer:

question is rong sister

Explanation:

ok na

Answer 2

Answer:

Na2S2O3•5H2O

Explanation:

calculate no. of moles of every element by the formula no. of moles = given mass / molar mass

also take total compound as 100g .

at last find n =MF/EF

and then you can do yourself