Empirical formula x n = Molecular formula so, empirical formula mass x n = molecular formula mass Mass of Si = 28.0855 and H = 1.008 (28.0855 g + 3 x 1.008g) x n = 62 g 31.1095 x n = 62 31.1095 is equal to 31 approximately n = 62/31 = 2 So, 2 x SiH₃ = Si₂H₆ Si₂H₆ is the molecular formula of the compound.
