A 1 mL aliquot of a solution containing Cu2+ and Ni2+ is treated with 25 mL of a
ID: 899281 • Letter: A
Question
A 1 mL aliquot of a solution containing Cu2+ and Ni2+ is treated with 25 mL of a 0.03329 M EDTA solution. The solution is back tirated with 0.02301 M Zn2+ solution at a pH of 5. A volume of 15.81mL of the Zn2+ solution was needed to reach the xylenol orange end point. A 2 mL aliquot of the Cu2+ and Ni2+ solution is fed through an ion exchange column that retains Ni2+. The Cu2+ that passed through the column is treated with 25 mL 0.03329M EDTA. This solution required 19.78 mL of 0.02301 M Zn2+ for back titration. The Ni2+ extracted from the column was treated with 25 mL of 0.03329 M EDTA.
How many mL of 0.02301 M Zn2+ is required for back titration of the Ni2+ solution?
Explanation / Answer
A 1 mL aliquot of a solution containing Cu2+ and Ni2+ is treated with 25 mL of a
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.