Question

1
8. The empirical formula
and molecular mass of a
compound are CH20 and
180 g respectively. What
will be the molecular
formula of the
compound?
O C9H1809
O CH20
O C6H1206
O C2H4O2​

Answer 1

Answer:

The answer of this Question is C6H12O6

Answer 2

Explanation:

Given :-

• Empirical formula of compound is CH2O
• Molecular mass is 180 g

To Find :-

• Molecular formula of the compound

Let's calculate the empirical mass first,

CH2O

→ 12 + 1×2 + 16

→ 12 + 2 + 16

→ 30 g/mol

As we know that :-

• molecular mass = n × empirical mass

→ 180 = n × 30

→ n = 6

And

As we know that :-

• molecular formula = n × empirical formula

→ molecular formula = 6(CH2O)

→ molecular formula = C6H12O6

Hence,

Option C is correct.