oo AT&T; 8:43 PM rganic.cc.stonybrook.edu What is the oxidation state of iron in
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oo AT&T; 8:43 PM rganic.cc.stonybrook.edu What is the oxidation state of iron in the ferrous phenanthroline complex? Question 1 Missing Enter an integer answer, with the correct sign of the ion. Enter Your Answer: Question 2 86.3 mL of 5.29E-05 M ferrous sulfate solution is used vaniation: 17/20 to supply the ferrous iron for a complexation reaction with phenanthroline. What volume (mL) of 1.39 x 10-2 M phenanthroline would be required to convert all of the ferrous ion to the phenanthroline complex? HINT: Remember the stoichiometry is not 1:1 Look at the figure in Question 1, or at the lecture notes. Enter a numeric answer only, to the correct number of significant figures. Do not enter units with your answer. Enter Your Answer In the formation of the complex, hydroquinone acts as a(n): a) buffer b) catalyst c) complexing agent d) reducing agent e) oxidizing agent f) dye Enter Your Answer: Question 3 OA OB OC OD OE OF The complex is formed in a solution buffered at a pH that is: a) basic b) neutral c) slightly acidic d) positive e) negative f) imaginary Enter Your Answer: Question 4 OA OB OC OD OE OF ariation: 17/20 The below information is to be used in answering the remaining Questions.Explanation / Answer
1. The oxidation state of iron in the ferrous phenanthroline complex is +2.
2. Just consider the formula: M1V1 = M2V2
5.29 * 10-5 * 86.3 = 1.39 * 10-2 * V2
V2 = 0.328 ml
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