Problem- a student mixes 500 ml of 00020 m feno33 with 200, Ask an Expert

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Problem- A student mixes 5.00 ml of 0.0020 M Fe(NO3)3 with 2.00 ml of 0.0020 M KSCN solution and 3.00 ml water at a certain temperature. The places a sample of the resulting solution in a spectrometer, and measures the transmittance as 26% at 447 nm.

a) What are the initial concentration of [Fe3+] and [SCN-]?

b) What are the final concentration of [Fe3+], [SCN-] and [FeSCN2+]?

c) What is the measured value of Keq?

Please explain why you chose your answer!

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