Exactly 1 litre of solution contains 0.016 mole of Co²+ ions and 0.0016 mole of Fe2+ ions. You wish to separate these ions by selective precipitation using the drop-wise addition of a solution of K2CO3. Explain, by using a full calculation, which of the salts COCO3 or FECO3 will precipitate first? Given: Ksp (C0CO3) = 1.4 × 10-13 and Ksp (FECO3) = 3.2 × 10-11
Exactly 1 litre of solution contains 0.016 mole of Co²+ ions and 0.0016 mole of Fe2+ ions. You wish to separate these ions by selective precipitation using the drop-wise addition of a solution of K2CO3. Explain, by using a full calculation, which of the salts COCO3 or FECO3 will precipitate first? Given: Ksp (C0CO3) = 1.4 × 10-13 and Ksp (FECO3) = 3.2 × 10-11
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![3.1
Exactly 1 litre of solution contains 0.016 mole of Co²+ ions and 0.0016 mole of Fe2+ ions.
You wish to separate these ions by selective precipitation using the drop-wise addition of a
solution of K2CO3.
Explain, by using a full calculation, which of the salts COCO3 or FeCO, will precipitate first?
Given: Ksp (CoC0,) = 1.4 x 10-13 and Kgp (FeCO3) = 3.2 x 10-11
A voltaic cell is set up at 25 °C and delivers 0.37 V. One half cell contains an acidified solution
of dichromate and chromium(III) ions, and the other half-cell is based on the following
3.2
reaction:
NOŽ(aq) + 3H30*(aq) + 2e¯ → HNO2(aq) + 4H20 (f), Eed = 0.94 V
3.2.1 Write down the fully balanced cell-reaction equation.
3.2.2
[Cr3+]2
[Cr,03-]
·be if [NO5] = 0.09 M, [HNO2 ] = 0.15 M and the
What must the value of the ratio
pH = 0.60?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9f92166e-a2d2-49c5-b010-ecee21a95b2f%2F027ee801-8f47-48c7-a012-c529e2b2c0cd%2F9d853oh_processed.png&w=3840&q=75)
Transcribed Image Text:3.1
Exactly 1 litre of solution contains 0.016 mole of Co²+ ions and 0.0016 mole of Fe2+ ions.
You wish to separate these ions by selective precipitation using the drop-wise addition of a
solution of K2CO3.
Explain, by using a full calculation, which of the salts COCO3 or FeCO, will precipitate first?
Given: Ksp (CoC0,) = 1.4 x 10-13 and Kgp (FeCO3) = 3.2 x 10-11
A voltaic cell is set up at 25 °C and delivers 0.37 V. One half cell contains an acidified solution
of dichromate and chromium(III) ions, and the other half-cell is based on the following
3.2
reaction:
NOŽ(aq) + 3H30*(aq) + 2e¯ → HNO2(aq) + 4H20 (f), Eed = 0.94 V
3.2.1 Write down the fully balanced cell-reaction equation.
3.2.2
[Cr3+]2
[Cr,03-]
·be if [NO5] = 0.09 M, [HNO2 ] = 0.15 M and the
What must the value of the ratio
pH = 0.60?
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