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Complex Ion lab - Chem 125 Name Dr Neff Olivia Nixon...

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Chem 125 Dr. Neff Name: Olivia Nixon Partner: Partner: Experiment 3: Determination of the Formula for a Metal Ion Complex Instructions: Each person is to submit an individual report, due at the beginning of the next lab period. You must turn in a typed hard copy of this report, with all relevant graphs attached. Part 1: Preparation of Standard Solutions In the table below, record the results of your calculations for each of the standard solutions you made. Write a descriptive title for this table in the space below. Use units where appropriate. Volume of Iron and Phananthroline in Test Tubes and Corresponding Mole Fractions Tube No. Volume Fe 2+ (mL) Volume Phenanthroline (mL) Total Volume (mL) Mole Fraction Phenanthroline 1 4.50 0.50 5.00 .1 2 4.00 1.00 5.00 .2 3 3.50 1.50 5.00 .3 4 3.00 2.00 5.00 .4 5 2.50 2.50 5.00 .5 6 2.00 3.00 5.00 .6 7 1.50 3.50 5.00 .7 8 1.00 4.00 5.00 .8 9 0.80 4.20 5.00 .84 10 0.60 4.40 5.00 .88 11 0.40 4.60 5.00 .92 12 0.20 4.80 5.00 .96
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In the space below, show your calculation for the mole fraction of 1,10-phenanthroline for tube #5. Be sure to include units where appropriate. Mole Fraction = 3.0 x 10 -7 mol/mL x 2.50 mL (3.0 x 10 -7 mol/mL x 2.50 mL) + (3.0 x 10 -7 mol/mL x 3.5 mL) Mole Fraction tube 5 = .5 Part 2: Determination of the λ max for the Standard Solutions
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