A compound on analysis gave the following percentage
composition: Na=14.31% S = 9.97%, H = 6.22%, O = 69.5%, calcualte the
molecular formula of the compound on the assumption that all the
hydrogen in the compound is present in combination with oxygen as water
of crystallisation. Molecular mass of the compound is 322 [Na = 23, S = 32,
H = 1, 0 = 16].