Hydrogen peroxide concentration

[NTrivedi]

Can anybody please tell how to calculate molar concentration of hydrogen peroxide from % concentration? for example if we have 6% hydrogen peroxide what is the molar concentration of the same? Thanks- NEHAL

[dolphinscales]

this might be over simplified but this is how my brain works around this.

6% = 6g in 100ml
that means 60g in 1000ml (1L)

known amount / MW = M

so 60g / 34 = 1.7 M

i think that is right - i am sure soem one will correct me if i am wrong

[franco]

Hi Nehal,
I agree with Annette's calculations for 100 vol peroxide. I have attached a table I made some time ago when we were supplied 120 vol or 100 vol, depending on what the supplier sent. Hope this helps.
Fran

[dolphinscales]

thanks for that and for the table good for quick look up and no thinking (shameful of me i guess but ths time of year no extra thinking is a good thing)

[Jazz]

http://www.trimen.pl/witek/calculators/stezenia.html
this is fantastic concentration calculator it is free to use (limited to few chemicals), select % and it will calculate molarities

[vlclabbie]

And here's another....

http://www.graphpad.com/quickcalcs/molarityform.cfm

Enjoy!!!

[dolphinscales]

nice web sties ladies many thanks
vlclabbie - loving yours

[vlclabbie]

No probs Annette

Kel

[NTrivedi]

I appreciate the reply posted by all. particularly the website referred http://www.trimen.pl/witek/calculators/calculators.html is good.

Thanks to ALL who contributed to the answer.

N TRIVEDI

[Ocker]

The concentration of Hydrogen peroxide can only be determined by its reaction rate as it is unstable and wants to revert to water, therefore I always store in the fridge
Cheers

[RosalieL]

Does anyone have a copy of Franco's table above? I can't open it for some reason... (it's possibly too old a version?)

[Anna Z]

Opens for me.

Capture.PNG

[mtg]

This is the best thing I've seen for ages. Thank you. I now have a copy with the H2O2 and in the recipe book.