A student completed Test Solution 1: 2.5 mL of 2.00×10−32.00×10−3 M Fe(NO3)3Fe(NO3)3 mixed with 0.5 mL of 2.00×10−32.00×10−3 M NaSCNNaSCN and topped with 2.0 mL of 0.1 M HNO3HNO3 to make a total of 5.0 mL solution. The absorbance of the solution was measured, and the calibration curve was used to calculate [FeSCN2+][FeSCN2+] at equilibrium. Concentration of [FeSCN2+][FeSCN2+] at equilibrium was 7.5×10−57.5×10−5 M. Complete the given chart and the calculation that follows. initial [Fe3+], M2= initial SCN[Fe3+], M2= M Fe3+Fe3+ + SCN−SCN− ↽−−⇀↽−−⇀ FeSCN2+FeSCN2+ Initial Change Equilibrium Calculate the equilibrium Kc for this reaction (to two significant figures

A student completed Test Solution 1: 2.5 mL of 2.00×10−32.00×10−3 M Fe(NO3)3Fe(NO3)3 mixed with 0.5 mL of 2.00×10−32.00×10−3 M NaSCNNaSCN and topped with 2.0 mL of 0.1 M HNO3HNO3 to make a total of 5.0 mL solution. The absorbance of the solution was measured, and the calibration curve was used to calculate [FeSCN2+][FeSCN2+] at equilibrium. Concentration of [FeSCN2+][FeSCN2+] at equilibrium was 7.5×10−57.5×10−5 M. Complete the given chart and the calculation that follows. initial [Fe3+], M2= initial SCN[Fe3+], M2= M Fe3+Fe3+ + SCN−SCN− ↽−−⇀↽−−⇀ FeSCN2+FeSCN2+ Initial Change Equilibrium Calculate the equilibrium Kc for this reaction (to two significant figures

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter9: Atomic Absorption And Atomic Fluorescence Spectrometry

Section: Chapter Questions

Problem 9.21QAP

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