acidpractice1

acidpractice1 - 3 O + ] = 3.20x10-3 M 6. Given [OH-], find...

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CHEM 2B: acids and bases Clemens 1. The following is a list of acids and their Ka values: H 2 S K a = 1.1x10 -7 HOCl K a = 3.5x10 -8 HNO 2 K a = 4.5x10 -4 a) which acid is the strongest? b) Write the Ka expression for this acid. c) Which acid has the strongest conjugate base? 2. Consider the following reaction and predict which direction it will proceed: a) HNO 2 (aq) + ClO 4 - (aq)  HClO 4 (aq) + NO 2 - (aq) b) HSO 4 - (aq) + NO 3 - (aq)  HNO 3 (aq) + SO 4 2- (aq) 3. If [H 3 O + ] = 1.85x10 -8 M for a solution, then calculate [OH - ]. Is the solution acidic, basic, or neutral? 4. If [OH - ] = 9.05x10 -12 M for a solution, then calculate [H 3 O + ]]. Is the solution acidic, basic, or neutral? 5. Find the pH of the following solutions and indicate whether they are acidic, basic, or neutral. i. [H 3 O + ] = 1.45x10 -6 M ii. [H 3 O + ] = 6.56x10 -10 M iii. [H
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Unformatted text preview: 3 O + ] = 3.20x10-3 M 6. Given [OH-], find the pOH of the following solutions and indicate whether the solutions are acidic, basic, or neutral. iv. [OH-] = 0.001M v. [OH-] = 8.34x10-7 M vi. [OH-] = 5.50x10-2 M 7. Find the [H 3 O + ] of the following solutions and indicate whether they are acidic, basic, or neutral. vii. pH = 3.55 viii. pH = 7.00 ix. pH = 9.11 8. Find the [OH-] of the following solutions and indicate whether they are acidic, basic, or neutral. x. pOH = 12.15 xi. pOH = 5.25 xii. pOH = 6.61 9. If [OH-] =6.6x10-9 M, find [H 3 O + ], pH, and pOH. 10. Complete the following chart. pH [H + ] pOH [OH-] Acidic or Basic? 0.0045 7.88 7.86x10-8 M 8.00 4.13 11. Calculate the pH of a) 0.00345M HCl b) 5.5x10-5 M NaOH c) 0.0065M Ca(OH) 2...
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This note was uploaded on 03/07/2009 for the course CHEM 2B taught by Professor Clemens during the Winter '08 term at UC Davis.

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acidpractice1 - 3 O + ] = 3.20x10-3 M 6. Given [OH-], find...

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