Question

The empirical formula for a compound is ch2o and the molar mass is 180.2g mol which is molecular formula for this compound

Answer 1

Answer:
Molecular Formula = C₆H₁₂O₆

Solution:

Molecular formula is calculated by using following formula,

Molecular Formula = n × Empirical Formula ---- (1)

Also, n is given as,

n = Molecular Weight / Empirical Formula Weight

Molecular Weight = 180.2 g.mol⁻¹

Empirical Formula Weight = 12 (C) + 2 (H₂) + 16 (O) = 30 g.mol⁻¹
Son
n = 180.2 g.mol⁻¹ ÷ 30 g.mol⁻¹

n = 6

Putting Empirical Formula and value of "n" in equation 1,

Molecular Formula = 6 × CH₂O

Molecular Formula = C₆H₁₂O₆