ноHOHOHO0 + ½ O, →+ H,0HHноонascorbic 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 A0.751.3-0.290.2910,382.6-0.970.9720.195.3- 1.71.730.09511- 2.42.428. 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 pKa of this acid?(A)(B)(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) sp³, sp(B) sp?, sp?(C) sp³, sp?(D) sp, sp?

28. Given : No. of moles = 0.0050 moles Volume = 0.500 L pH = 2.94 We have to calculate pKa of the…

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 0.500 L of water, the pH is measured as 2.94 What is the pK, of this acid? (A) (B) (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: CH;CH=CH2? (A) sp?, sp (B) sp², sp? (C) sp?, sp? (D) sp, sp?

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 0.500 L of water, the pH is measured as 2.94 What is the pK, of this acid? (A) (B) (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: CH;CH=CH2? (A) sp?, sp (B) sp², sp? (C) sp?, sp? (D) sp, sp?

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter19: Aldehydes And Ketones: Nucleophilic Addition Reactions

Section19.5: Nucleophilic Addition Of H2o: Hydration

Problem 8P: The oxygen in water is primarily (99.8) 16O, but water enriched with the heavy isotope 18O is also...

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