February 22, 2017

Homework Help: chemistry

Posted by david on Monday, April 14, 2008 at 1:56pm.

The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.520. If a trial's absorbance is measured to be 0.275 and its initial concentration of SCN– was 0.00060 M, the equilibrium concentration of SCN– will be????

i think i have to use mv=mv, but i don't know how to relate absorbance on this problem.

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