5(a) A sample containing 4.00 x 102 mmol of CuSO4 and 1.00 x 10-2 mmol of KNO3 is passed through a cation-exchange column. Calculate the volume of 0.010 M NaOH needed to titrate the eluate. 5(b) If 50.0 mL of 1.00 x 10-5 M Fe3+ in a buffer were to be extracted with 5 equal 25.0 mL portions of 0.100 M HL in CHCl3, what should the buffer pH be in order to remove 99.5% of the iron from the aqueous phase. (hint: first find D.
5(a) A sample containing 4.00 x 102 mmol of CuSO4 and 1.00 x 10-2 mmol of KNO3 is passed through a cation-exchange column. Calculate the volume of 0.010 M NaOH needed to titrate the eluate. 5(b) If 50.0 mL of 1.00 x 10-5 M Fe3+ in a buffer were to be extracted with 5 equal 25.0 mL portions of 0.100 M HL in CHCl3, what should the buffer pH be in order to remove 99.5% of the iron from the aqueous phase. (hint: first find D.
Chapter19: Applications Of Standard Electrode Potentials
Section: Chapter Questions
Problem 19.13QAP
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Transcribed Image Text:5(a)
A sample containing 4.00 x 102 mmol of CuSO4 and 1.00 x 10-2
mmol of KNO3 is passed through a cation-exchange column.
Calculate the volume of 0.010 M NaOH needed to titrate the eluate.
5(b)
If 50.0 mL of 1.00 x 10-5 M Fe3+ in a buffer were to be extracted
with 5 equal 25.0 mL portions of 0.100 M HL in CHCl3, what should
the buffer pH be in order to remove 99.5% of the iron from the
aqueous phase. (hint: first find D.
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