Question

Empirical formula of hydrogen peroxide is HO.. its molecular mass is 34.what will be its molecular formula ? *

a .H₂O

b. H₂O₂

c. H₂O₄

d. H O​

Answer 1

$⟶\:{H}_{2}{O}_{2}$

hydrogen peroxide .

Answer 2

The correct option is b.

Given:

The empirical formula of hydrogen peroxide is HO and its molecular mass is 34.

To find:

The molecular formula.

Solution:

The empirical formula of hydrogen peroxide is HO.

The atomic mass of Oxygen is 16 and H is 1 gram.

Thus the empirical mass of HO is 16+1=17 grams.

Its molecular mass is 34.

Thus, the coefficient is as follows-

n=34/17

=2.

Its molecular formula is (HO)n.

Thus the molecular formula of hydrogen peroxide is H₂O₂.