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Unformatted text preview: Fe(NO 3 ) 3 +KSCNFe(SCN) 2+ and used a spectrometer to measure the absorptions. From the equation in part I we found the concentrations of Fe(SCN) 2+ . For B-1 through B-5 respectively: 2.16*10-6 , 4.12*10-5 , 1.16*10-4 , 2.16*10-4 , 2.87*10-4 . K=[ Fe(SCN) 2+ ]/([ KSCN][ Fe(NO 3 ) 3 ]) Some possible errors would be letting the solution sit in the spectrometer so long that the light starts to affect the solution, or not being careful enough about fingerprints. I learned to use a spectrometer to measure. Next time I will work quicker to get the answers to avoid another time specific error....
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- Spring '07