Homework SourseA solution with initial Fe3 000020 M and initial SCN1000080
A solution with initial [Fe3+] = 0.00020 M and initial [SCN1-0.00080 M comes to equilibrium. The absorbance of the equilibrium mixture is 0.154. Using the Beer\'s law graph provided in Figure 2, calculate the equilibrium constant for the reaction 4, Fe (aq) +SCN (aq)Fe(SCN)2+(aq) ![A solution with initial [Fe3+] = 0.00020 M and initial [SCN1-0.00080 M comes to equilibrium. The absorbance of the equilibrium mixture is 0.154. Using the Beer](/WebImages/46/a-solution-with-initial-fe3-000020-m-and-initial-scn1000080-1144660-1761614875-0.webp "A solution with initial [Fe3+] = 0.00020 M and initial [SCN1-0.00080 M comes to equilibrium. The absorbance of the equilibrium mixture is 0.154. Using the Beer")
Solution
You got a straight line while plotting concentration vs absorbance. Slope of the straight line is equal to Kequilibrium. that is y = 8800 x + C, Keq = 8800.
