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What apparatus?

What apparatus do I need for the gas collection of H2O2 experiment?

Also how much manganese dioxide do i need as a catalyst bearing in mind that i want to get around 50cm3 of oxygen gas produced from 50cm3 of 0.083M H2O2?

Thanks again :wink:

Reply 1

charco

Study Forum Helper

pafc4eva

upside down measuring cylinder in a water trough, or a gas syringe

MnO2 is the catalyst - any amount is ok

Reply 2

pafc4eva

thanks charco.

another question though, how long should i wait before taking a reading? :confused:

Reply 3

charco

Study Forum Helper

pafc4eva

thanks charco.

another question though, how long should i wait before taking a reading? :confused:

You should start taking readings at the beginning, i.e. time=0

Reply 4

pafc4eva

charco

You should start taking readings at the beginning, i.e. time=0

im sorry but i dont understand why :frown:

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