Question

The volume strength of 1.5 N HO, solution is :
(A) 48 V
(B) 8.4 V
(C) 3V
(D) 8 V​

Answer 1

Answer:

Volume strength of hydrogen peroxide is defined as the term which is used to express the concentration of in terms of volumes of oxygen gas based on its decomposition to form water and oxygen.

Reaction of decomposition of hydrogen peroxide will be:

 

Let us assume that the solution of M moles of is present in 1L solution

From the stoichiometry of the reaction:

2 moles of gives 1mol of oxygen

We can also say that 2 moles of produces 22.4 L of oxygen gas at STP.

So, 1mole will produce = of oxygen gas.

Hence, M mole of will produce (11.2 x M) L of Oxygen gas.

We can also say that,

1L of will give (11.2 x M) L of Oxygen gas.

Therefore, the Volume strength of = 11.2 x M

Now, converting this in terms of normality, we get:

n factor for is 2.

We know that:

So, for :

We are given normality of = 1.5 N

So, Volume strength of =

Hence,  The volume strength of will be 8.4