Classroom Assignment- 3A, CHEM 2501 Department of Chemistry and Forensic -Spring

Question

Classroom Assignment- 3A, CHEM 2501 Department of Chemistry and Forensic -Spring 2018 nstructor Dv Mana Prasad Ph.D Question 3: The equilibrium constant Ka for an acid in an aqueousPe Raceived medium is 1 X 10%. What can you say about this material? A. It is a strong acid B. It is a weak acid C. It is a weak base D. It is a strong base Answer Question 4. Which of the following is the strongest base? ,] a. H3 b. H2N- c. HO- d. F Answer Question 5. A loss of proton from a Brensted-Lowry acid results in aPont A. B. C. D. E. Lewis acid conjugate acid conjugate base conjugate acid-base pair None of these electron enI Question 6: The tail of the curved arrow must start at electron density. density and the head must end at A. low, high B. high, high C. low, low D. high, low Answer Question 7:Which of the following compounds is most acidic? A. I Point Received D. E. All of these Answer: Question 8: Which of the following compounds is most acidic? Recerved A. I Ci D. Answer Page 2 of 2

Explanation / Answer

3.

Since Ka value is too high , the acid is strong acid.

(A)

4.

(a) H3C- is strong base becuase CH4 is weakest acid among the given.

5.

(C) Conjugate base

6.

(D) High to low

7.

(A) I, Phenol is most acidic because the anion obtained after the loss of proton is more stable than phenol.

8.

(B)

Presence of most electronegative group at alpha position of carboxylic group will increease the acidic nature of carboxylic acids.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.