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Topic: Finding concentration  (Read 1353 times)

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Offline purplemonkey123

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Finding concentration
« on: November 01, 2015, 09:48:16 AM »
Hello!
The other day, my class did a lab. We found the standard curve (concentration vs. absorbance) of a food dye. I have to determine the concentration of the dye in another solution. The other solution had an absorbance of 0.349.
When I graphed my standard curve, the equation is in the form y = mx. (m is a constant)
How do I find the concentration using spectrophotometric analysis?
« Last Edit: November 01, 2015, 10:11:45 AM by purplemonkey123 »

Offline Hunter2

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Re: Finding concentration
« Reply #1 on: November 01, 2015, 11:05:18 AM »
Yöu go into your curve and read at the intersection of 0,349 absorbance  your concentration.

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