January 23, 2021, 11:45:59 AM
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Topic: Lab help  (Read 212 times)

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Offline janaelkat

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Lab help
« on: October 21, 2020, 12:42:44 PM »
Could anyone help me figure out these numbers? My lab professor is insanely unhelpful. He assigned us 9 pages and refuses to answer his email. I have 8 more pages to do but I can’t start them until I have these numbers figured out. >_<

Offline chenbeier

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Re: Lab help
« Reply #1 on: October 21, 2020, 04:21:57 PM »
What do you dont  understand ?
The first number is the wave length where the max. absorption of light of permanganate takes place.
Then the absortivity factor is given.

Then a make up procedure of a special ipa solution contains fluoride is given.

The last are some measured results.

I guess permanganate should react with the alcohol and the disappearing of color is detected.




Online Babcock_Hall

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Re: Lab help
« Reply #2 on: October 22, 2020, 11:40:37 AM »
Can you show how you calculated one of the averages?

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