Calculate the molar mass of the following
(i) `H_2 O`
(ii) `CO_2`
(iii) `CH_4`

calculate the molecular mass of the following in u. C_2 H_5 OH

In which of the following molecules, the central atom has expanded octet ? (i) SCl_2 (ii) CO_2 (iii) PF_5 (iv) H_2SO_4 (v) BCl_3

Find the out the molar masses of the following compounds: Mohr's salt [FeSO_4(NH_4)_2SO_4*6H_2O] ( mass : cu = 63.5, S = 32, O = 16, H = 1, Na= 23, C = 12, Fe = 56, N = 14)

Find the out the molar masses of the following compounds: Copper sulphate crystal (CuSo_4*5H_2O)

Calculate the oxidation number of underbracket atoms. H_2(S)O_4