Homework Help: chemistry

Posted by Jason on Wednesday, April 9, 2008 at 9:42pm.

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 0.510. If a trial's absorbance is measured to be 0.250 and its initial concentration of SCN– was 0.00050 M, the equilibrium concentration of SCN– will be

what formulas are there that relate absorbance and concentration ?

chemistry - DrBob222, Wednesday, April 9, 2008 at 10:00pm
Use Beer's Law, A=abc for the standard to determine the constant, a. Then use A=abc on the unknown to determine c and use that and ICE to arrive at the amount of SCN^- at equilibrium.

Answer this Question

Related Questions

Chem - There are three questions in particular that I am having problems with. ...
Chemistry - A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0...
chemistry - A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0...
chemistry - A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0...
Chemistry - A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0...
Chemistry - The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0...
Chemistry - The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0...
Chemistry - The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0...
Chemistry - The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0...
chemistry - The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0...

For Further Reading

First Name:
School Subject:
Answer: