Given the potential reduction patterns of the compounds below. Define, which reactions occur spontaneously. Fe* + le-- Fe2+E° = 0,77 VSn++ + 2e-Sn2+E° = 0,15 VFe2+ + 2e-- FeE° = -0,44 VCr* + 3e-- CrE° = -0,74 Vа.Sn+ + Fe3+Sn²+ + Fe2+b.3Fe + 2Cr³+→ 2Cr + 3Fe²+c.Sn²+ + FeSn** + Fe2+d. 3Sn** + 2Cr2Cr³* + 3Sn²+е.3F22+ → Fe + 2Fe³+AОсDO E

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Fe* + le- Fe* E° = 0,77 V Sn+ + 2e- Sn2+ E° = 0,15 V Fe2+ + 2e- → Fe E° = -0,44 V Cr* + 3e- → → Cr E° = -0,74 V а. Sn+ + Fe+ Sn²+ + Fe2+ b. 3Fe + 2Cr³* 2Cr + 3Fe²+ c. Sn²+ + Fe Sn* + Fe2+ d. 3Sn** + 2Cr 2Cr* + 3Sn²+ е. 3Fe2+ → Fe + 2FE³* O A В Ос O D O E

Fe* + le- Fe* E° = 0,77 V Sn+ + 2e- Sn2+ E° = 0,15 V Fe2+ + 2e- → Fe E° = -0,44 V Cr* + 3e- → → Cr E° = -0,74 V а. Sn+ + Fe+ Sn²+ + Fe2+ b. 3Fe + 2Cr³* 2Cr + 3Fe²+ c. Sn²+ + Fe Sn* + Fe2+ d. 3Sn** + 2Cr 2Cr* + 3Sn²+ е. 3Fe2+ → Fe + 2FE³* O A В Ос O D O E

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 14.6QAP: The accompanying data (1.00-cm cells) were obtained for the spectrophotometric titration 10.00 mL of...

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Question

Given the potential reduction patterns of the compounds below. Define, which reactions occur spontaneously.

Fe* + le-
- Fe2+
E° = 0,77 V
Sn++ + 2e-
Sn2+
E° = 0,15 V
Fe2+ + 2e-
- Fe
E° = -0,44 V
Cr* + 3e-
- Cr
E° = -0,74 V
а.
Sn+ + Fe3+
Sn²+ + Fe2+
b.
3Fe + 2Cr³+
→ 2Cr + 3Fe²+
c.
Sn²+ + Fe
Sn** + Fe2+
d. 3Sn** + 2Cr
2Cr³* + 3Sn²+
е.
3F22+ → Fe + 2Fe³+
A
Ос
D
O E

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