1aa3-2010-ch17-draft_f_skeleton_2

1aa3-2010-ch17-draft_f_skeleton_2 - CHEM 1AA3: Intro....

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chem 1AA3 CHEM 1AA3: Intro. Chemistry II Acid-Base Chemistry C h.17: Additional Aspects of Acid-Base Equilibria 2 Chem 1AA3 Acid-Base Chemistry: Review (Ch 16) Bronsted-Lowry Theory Refer to Ch. 16-2, pg 664-667- note arrows go in wrong direction in text HCl (aq) + H 2 O (l) Æ Cl - (aq) + H 3 O + (aq) Acid Conjugate Base Base Conjugate Acid NH 3 (aq) + H 2 O (l) NH 4 + (aq) + OH - (aq) acid = H + donor, base = H + acceptor acid/base reactants & conjugate acid/base products: •H 2 O is an amphoteric species (behaves as both an acid or a base) Base Conjugate Acid Acid Conjugate Base
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3 Chem 1AA3 You should know 6 strong acids . Which of the following is not a strong acid? (Strong acid: p K a < 1) Diagnostic iClicker Question HS Refer to Ch 16-4, pg 672-673 4 Chem 1AA3 You should know 5 types of strong base . Which of the following is not a strong base? (Strong base: p K b < 1) Diagnostic iClicker Question HS Refer to Ch 16-4, pg 672-673
Background image of page 2
5 Chem 1AA3 Review: Strong Acids/Bases vs. Weak Refer to Ch 16-4, pg 672-673 Concept Check: (a) What is the difference between a strong acid (or base) and a weak acid (or base)? (b) Give an example of: a weak acid, a weak base. (c) How do you identify whether an acid or base is weak? 6 Chem 1AA3 Review: Strong Acids/Bases vs. Weak Refer to Ch 16-5, pg 674-681 Concept check: (a) Weak acids/bases undergo partial ionization in water; Strong acids/bases undergo ~ complete ionization in water (b) Weak acids: Weak bases: Carboxylic acids, HF, H 2 CO 3 , H 2 SO 3 , HClO 2 , … Amines, NH 3 , CO 3 2- , …
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
7 Chem 1AA3 Review: Strong Acids/Bases vs. Weak Concept check: (c) Extent of ionization described by K a or K b - weak acid: K a < 1 or p K a > 1 - weak base: K b < 1 or p K b > 1 Ibuprofen, pK a 4.4, weak acid O OH 8 Chem 1AA3 Formative iClicker question #12 Which of the following is a weak Brønsted acid? (a) (b) (c) (d) (e) PH
Background image of page 4
9 Chem 1AA3 Formative iClicker question #12 Which of the following is a weak Brønsted base? (a) (b) (c) (d) (e) PB 10 Chem 1AA3 Formative iClicker question #12 Which of the following is a strong Brønsted base? (a) (b) (c) (d) (e) JV
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
11 Chem 1AA3 Formative iClicker question #12 Which of the following is a weak Brønsted acid? (a) (b) (c) (d) (e) HS 12 Chem 1AA3 Review: Acid-Base Equilibrium: Weak Acid & K a Equilibrium favours reverse process: Acidity of H 3 O + > CH 3 COOH Basicity of CH 3 COO - > H 2 O Acid Base Conjugate Base Conjugate Acid CH 3 COOH (aq) + H 2 O (l) CH 3 COO - (aq) + H 3 O + (aq) K a 5 3 3 3 10 8 . 1 COOH] [CH ] O ][H COO [CH + × = = a K Refer to Ch 16-5, pg 674-681
Background image of page 6