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Author Question: The oxidation of Cr3+ to CrO42 can be accomplished using Ce4+ in a buffered solution. The following ... (Read 103 times)

jrubin

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on: Mar 21, 2021

Question 1

The oxidation of Cr3+ to CrO42– can be accomplished using Ce4+ in a buffered solution. The following data were obtained:
 
Relative
Initial Rate
[Ce4+]0
[Ce3+]0
[Cr3+]0
 
1
2.0 × 10–3
1.0 × 10–2
3.0 × 10–2
 
2
4.0 × 10–3
2.0 × 10–2
3.0 × 10–2
 
4
4.0 × 10–3
1.0 × 10–2
3.0 × 10–2
 
16
8.0 × 10–3
2.0 × 10–2
6.0 × 10–2

​

Determine the order in the rate law of the species Ce4+.

 
Reference: Ref 12-7

​

​


◦ 1
◦ 2
◦ 3
◦ –1
◦ –2

Question 2

The oxidation of Cr3+ to CrO42– can be accomplished using Ce4+ in a buffered solution. The following data were obtained:
 
Relative
Initial Rate
[Ce4+]0
[Ce3+]0
[Cr3+]0
 
1
2.0 × 10–3
1.0 × 10–2
3.0 × 10–2
 
2
4.0 × 10–3
2.0 × 10–2
3.0 × 10–2
 
4
4.0 × 10–3
1.0 × 10–2
3.0 × 10–2
 
16
8.0 × 10–3
2.0 × 10–2
6.0 × 10–2

​

Determine the order in the rate law of the species Ce3+.

 
Reference: Ref 12-7

​

​


◦ 1
◦ 2
◦ 3
◦ –1
◦ –2
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by jrubin on Mar 21, 2021

fur

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jrubin

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Reply 2 on: Mar 21, 2021
:D TYSM

jackie

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Reply 3 on: Yesterday
Wow, this really help

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