A compound with the empirical formula SiH3 was found to have a molar mass of approximately 62 g. What is the molecular formula of the compound?

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.