How can volume strength be calculated?

Answer:

Let us consider an example of 1.5N hydrogen peroxide solution to understand the volume strength of the H2O2 solution.

1.5 N = 1.5 g equivalent weight in 1 L solution.

N = Weight / Equivalent weight for hydrogen peroxide

Equivalent weight of hydrogen peroxide = 17 g

∴ 1.5 = Weight /17

Weight = 1.5 X17

Weight of H2O2 = 25.5 g

Now, from the equation we know that 68 g of H2O2 gives 22.4 L of Oxygen.

Therefore, 25.5 g of Hydrogen peroxide gives

⇒ 22.4 X 25.5/68

= 8.4 L

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