The oxidation of Cr3+ to CrO42 can be accomplished using Ce4+ in ...

[jrubin]

Question 1

The oxidation of Cr³⁺ to CrO₄^2– 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 CrO₄^2– 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

[fur]

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[jrubin]

Gracias!

[dantucker]

Great answer, keep it coming