During concentration of hydrogen peroxide, the removal of last traces of water from `99% H_(2)O_(2)` is carried out by

Last traces of water is removed is removed from H_(2)O_(2) by

How is an aqueous solution of hydrogen peroxide concehtrated to get 100% pure H_(2)O_(2) ?

In some toothpastes hydrogen peroxide is used. What is the role of H_(2)O_(2) in them?

In some toothpastes hydrogen peroxide is used. What is the role of H_(2)O_(2) in them?

The percentage of hydrogen in H_2O is

Last molecule of H_(2) O is removed from H_(2)O_(2) by

Supposing for the reaction : H_(2)O_(2)+ 2I^(-) + 2H^(+) to I_(2) + 2H_(2)O the concentration of hydrogen peroxide decreases from 0.10 mole/litre to 0.08 mole/litre in 20 minutes. The average rate of reaction will be