Question

EXAMPLE: (3) Convert 6.8 % strength of H202 into
Volume strength?​

Answer 1

Answer:

COMMERCIAL LABELLING OF H2O2 AS ‘X’ VOLUME :  

Commercially H2O2 labelled as 'X' volume H2O2 (at P=1 ATM and T=273 K)

Where 'X' may be  10V, 20V, 30V, 40 V etc. 

Here  'X' Volume H2O2 means that 1ml of such solution of hydrogen peroxide on decomposition  produce 'X' ml of oxygen (at P=1 ATM and T=273 K).

For example 10 Volume H2O2 means that 1ml of such solution of hydrogen peroxide on decomposition  produce '10' ml of oxygen (at P=1 ATM and T=273 K).

W/V % or PERCENTAGE STRENGTH OF  H2O2SOLUTION: 

The amount of H2O2 in gram present in 100 ml of aqueous solution of H2O2. Called (w/v) or percentage strength.

Illustration:  taken 10 V (Vol) H2O2: