Question

The strength of 11.2 volume solution of H₂O₂ is: [Given that molar mass of H = 1 g mol⁻¹ and O = 16 g mol⁻¹]
(A) 3.4% (B) 1.7%
(C) 13.6% (D) 34%

Answer 1

Explanation:

The strength of 11.2 volume solution of H₂O₂ is: [Given that molar mass of H = 1 g mol⁻¹ and O = 16 g mol⁻¹]

(A) 3.4

(B) 1.7%✓✓✓

(C) 13.6% (D) 34%

Answer 2

We know,

Volume strength =11.2× molarity =11.2

⇒ molarity =1M

⇒ strength =34g/L

⇒%w/w=100034×100=3.4%

therefore=3.4%