Organic Chemistry
Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Chapter 3, Problem 40P

Malonic acid, HO 2 CCH 2 CO 2 H , is a diprotic acid. The p K a for the loss of the first proton is 2.83; the p K a for the loss of the second proton is 5.69. (a) Explain why malonic acid is a stronger acid than acetic acid ( p K a = 4.75 ). (b) Explain why the anion, O 2 CCH 2 CO 2 H , is so much less acidic than malonic acid itself.

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The pH of a 0.1 M solution of a monobasic acid P is 1.0 while the pH of a 0.2 M solution of another monobasic acid Q is 3.4 .(a) Which, P or Q, is a more concentrated solution?(b) Which, P or Q, is a stronger acid?(c) Which, P or Q, will react faster when a piece of magnesium is dropped to them? (d) Which, P or Q, contains more H+(aq) ions in 50 cm3solution?(e) Which, P or Q or both, can be neutralized by an alkali?(f) Name an instrument to measure the pH of the above solutions.(g) Is P a strong acid? Explain your answer.
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Chapter 3 Solutions

Organic Chemistry

Ch. 3 - Prob. 11PPCh. 3 - Prob. 12PPCh. 3 - Prob. 13PPCh. 3 - Prob. 14PPCh. 3 - PRACTICE PROBLEM 3.15 Nitro groups have a large...Ch. 3 - PRACTICE PROBLEM 3.16 Your laboratory instructor...Ch. 3 - Prob. 17PPCh. 3 - Prob. 18PPCh. 3 - Prob. 19PPCh. 3 - What is the conjugate base of each of the...Ch. 3 - List the bases you gave as answers to Problem 3.20...Ch. 3 - 3.22 What is the conjugate acid of each of the...Ch. 3 - List the acids you gave as answers to Problem 3.22...Ch. 3 - Rank the following in order of increasing acidity.Ch. 3 - Without consulting tables, select the stronger...Ch. 3 - Designate the Lewis acid and Lewis base in each of...Ch. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Write an equation, using the curved-arrow...Ch. 3 - 3.30 What reaction will take place if ethyl...Ch. 3 - 3.31 (a) The of formic acid. What is the? (b)...Ch. 3 - Acid HA has pKa=20; acid HB has pKa=10. (a) Which...Ch. 3 - Prob. 33PCh. 3 - 3.34 (a) Arrange the following compounds in order...Ch. 3 - 3.35 Arrange the following compounds in order of...Ch. 3 - 3.36 Arrange the following in order of increasing...Ch. 3 - Prob. 37PCh. 3 - 3.38 Supply the curved arrows necessary for the...Ch. 3 - Glycine is an amino acid that can be obtained from...Ch. 3 - 3.40 Malonic acid, , is a diprotic acid. The for...Ch. 3 - 3.41 The free-energy change, , for the ionization...Ch. 3 - 3.42 At the enthalpy change, , for the ionization...Ch. 3 - The compound at right has (for obvious reasons)...Ch. 3 - 3.44. (a) Given the above sequence of...Ch. 3 - Prob. 45PCh. 3 - Prob. 46PCh. 3 - 3.47 As noted in Table 3.1, the of acetone, , is...Ch. 3 - Formamide (HCONH2) has a pKa of approximately 25....Ch. 3 - List all the chemical species likely to be present...Ch. 3 - Prob. 2LGPCh. 3 - Prob. 3LGPCh. 3 - Prob. 4LGP

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