ноHOНоHOco + ½ 0, -+ H,OH"HноОнascorbic aciddehydroascorbic acidVitamin C is oxidized slowly to dehydroascorbic acid by the oxygen in air. It is catalyzed by ions such asCu*2 and Fe*3. The reaction can be followed by measuring the ultraviolet absorbance at 243 nm.Time (hours)Absorbance (A)1/AIn A- In A0.751.3-0.290.2910.382.6-0.970.970.195.3- 1.71.730.09511- 2.42.427. Which of the following is the best interpretation of the data given above?(A) The data support a zero-order reaction.(B) The data support a first-order reaction.(C) The data support a second-order reaction.(D) The overall order is third.28. A new compound is synthesized and found to be a monoprotic acid with a molar mass of 248g/mole. When 0.0050 moles of this acid are dissolved in 0.500L of water, the pH is measured as 2.94.What is the pk, of this acid?(A)(В)(C)(D)2.333.895.787.7829. What is the hybridization of carbon 1 (far left) and carbon 2 (middle) in this hydrocarbon:CH3CH=CH2?(A) sp, sp(B) sp?, sp?(C) sp3, sp2(D) sp, sp?

"Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

acid Vitamin C is oxidized slowly to dehydroascorbic acid by the oxygen in air. It is catalyzed by ions such as Cu*? and Fe*. The reaction can be followed by measuring the ultraviolet absorbance at 243 nm.

acid Vitamin C is oxidized slowly to dehydroascorbic acid by the oxygen in air. It is catalyzed by ions such as Cu? and Fe. The reaction can be followed by measuring the ultraviolet absorbance at 243 nm.

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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Question

но
HO
Но
HO
co + ½ 0, -
+ H,O
H"
H
но
Он
ascorbic acid
dehydroascorbic acid
Vitamin C is oxidized slowly to dehydroascorbic acid by the oxygen in air. It is catalyzed by ions such as
Cu*2 and Fe*3. The reaction can be followed by measuring the ultraviolet absorbance at 243 nm.
Time (hours)
Absorbance (A)
1/A
In A
- In A
0.75
1.3
-0.29
0.29
1
0.38
2.6
-0.97
0.97
0.19
5.3
- 1.7
1.7
3
0.095
11
- 2.4
2.4
27. Which of the following is the best interpretation of the data given above?
(A) The data support a zero-order reaction.
(B) The data support a first-order reaction.
(C) The data support a second-order reaction.
(D) The overall order is third.
28. A new compound is synthesized and found to be a monoprotic acid with a molar mass of 248
g/mole. When 0.0050 moles of this acid are dissolved in 0.500L of water, the pH is measured as 2.94.
What is the pk, of this acid?
(A)
(В)
(C)
(D)
2.33
3.89
5.78
7.78
29. What is the hybridization of carbon 1 (far left) and carbon 2 (middle) in this hydrocarbon:
CH3CH=CH2?
(A) sp, sp
(B) sp?, sp?
(C) sp3, sp2
(D) sp, sp?

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