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What's an easy way to measure the production of hydrogen and oxygen during electrolysis? Sal2
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Bob111
science forum Guru Wannabe


Joined: 13 Jan 2006
Posts: 115

PostPosted: Mon May 22, 2006 3:40 am    Post subject: Re: What's an easy way to measure the production of hydrogen and oxygen during electrolysis? Sal2 Reply with quote

Maybe I'm misunderstanding your question, but it is pretty simple - I guess
you never took general chemistry lab in high school?
Use a pneumatic trough - run the electrolysis under a water-filler
collection buret - the product gases diplace water in a pair of inverted
columns - after running the reaction, the collected gases (water vapor plus
oxygen in one, and water vapor plus hydrogen in the other - correct for the
height of water column left in the buret and for the parial pressure of
water vapor at your bulk temperature, and you have an easy way to visually
measure the reaction progress. If you are adventurous, you can monitor the
flow of current and calculate the theoretical yield (coulometry) - compare
what is actually produced to what should have been produced.
Your life isn't any easier when all your data is collected by the
computer - get involved with your science, and learn the basics. Forget the
computer - most of the time they are just useless appenadages anyway.


"sal" <sal@spp.net> wrote in message
news:Xns96FA90FABCE5Fsalsppnet@140.99.99.130...
Quote:
Greets, All

What's an easy way to measure the production of hydrogen and oxygen during
electrolysis? Sal2

What's an easy way to measure the production of hydrogen and oxygen during
electrolysis. I have labview 7.1 and a DAQ card by NI insturments (usb-
6008). I don't have to use these at all but it would make life easy to
have the data collected automaticlly by computer. I'm willing to start
from scratch to by new equipment but I'm not sure what equipment to
purchase.

Does anyone have a list of things I need:

1) What I need to purchase to record the production of hydrogen and oxygen
over time via a computer during electrolysis.
2) I have a limited budget.

TIA
Sal2
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