lecture 24 - Turn on Camtasia Recording Advising and...

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Unformatted text preview: Turn on Camtasia Recording! Advising and registration for the Fall 08 semester will begin for Chemistr majors on April 7 Memos Chemistry 7. concerning registration and advising will be placed in folder pockets near the Undergraduate mailboxes, located opposite GSMN 153. Please take one of each and read it carefully. Information on advising, schedules and registration may also be found on the Chemistry Undergraduate website: http://www.chem.umass.edu/Undergraduate/ ... 1 The hydronium ion concentration of an aqueous solution of 0.313 M ammonia is A. 7.27x A 7 27x 10-13 B. 4.21x 10-12 C. 8.56x 10-10 D. 5.01x 10-9 E. 4.73x 10-5 ... 2 ... 3 The hydronium ion concentration of an aqueous solution of 0.313 M ammonia is ... ... 4 What is the pH of a 0.001 M formic acid solution? What is the concentration of formic acid at equilibrium? ... 5 ... 6 What is the pH of a 0.001 M formic acid solution? What is the concentration of formic acid at equilibrium? ... 7 Polyprotic Acids ... 8 Lewis Acids & Bases Lewis acid a substance that ________ an electron pair l t i Lewis base a substance that _______ an electron pair ... 9 Lewis acids : e- pair acceptor Lewis bases: e- pair donor ... 10 Lewis Acids & Bases Formation of hydronium ion is also an excellent example. Electron pair of the new O-H bond ne Ooriginates on the Lewis base. ... 11 Lewis Acid/Base Reaction ... 12 Which of the following compounds are lewis acids? A. B. C. C D. E. BF3 CH4 ClFe3+ H2O ... 13 Which of the following compounds are lewis bases? A. B. C. C D. E. BF3 CH4 ClFe3+ H2O ... 14 Which of the following compounds can act as a lewis acid or base? A. B. C. D. E. BF3 CH4 ClFe3+ H2O ... 15 Equilibria Involving A Weak Acid You have 1.00 M HOAc. Calc. the equilibrium HOAc. concs. HOAc, concs. of HOAc, H3O+, OAc-, and the pH. pH. ... 16 ...
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