Hydrogen peroxide

[dolphinscales]

Hello everyone
i am in need of soem help please.

I have a bottle of 35% Hydrogen Peroxide and need to make a 20 Volume solution.

I dont understand the volume thing, we usually only use 3% and 6%.

[Rickerby]

The "volume thing" is explained on page 62 of the departments science laboratory manual.

I use the following calculations but I am not guaranteeing accuracy.

16.6ml of 35% per 100ml water gives 20V (or 6%)

[dolphinscales]

Thanks for your reply

I found the reference page once I posted.