Chapter 7 Acids and Bases: Please Pass the Protons
Transcription
Chapter 7 Acids and Bases: Please Pass the Protons
Chapter 7 Acids and Bases: Please Pass the Protons Copyright © 2010 Pearson Education, Inc. According to the Arrhenius theory, an acid is any substance that dissolves in water to produce: a. b. c. d. e. Copyright © 2010 Pearson Education, Inc. H3O+ OHSalts Ions A bitter taste According to the Arrhenius theory, an acid is any substance that dissolves in water to produce: a. b. c. d. e. Copyright © 2010 Pearson Education, Inc. H3O+ OHSalts Ions A bitter taste Many metal oxides, such as Na2O, dissolve in water to produce: Na2O + H2O → ? a. b. c. d. e. Copyright © 2010 Pearson Education, Inc. Acids Bases Neutral salts Covalent compounds A sour taste Many metal oxides, such as Na2O, dissolve in water to produce: Na2O + H2O → 2 NaOH Sodium hydroxide–A strong base a. b. c. d. e. Copyright © 2010 Pearson Education, Inc. Acids Bases Neutral salts Covalent compounds A sour taste What is the product when selenium dioxide reacts with water? Selenium dioxide + Water → ? SeO2 + H2O → ? a. b. c. d. e. Se(OH)2 SeH2O2 Se + H2O3 H2SeO3 H2SeO2 + O Copyright © 2010 Pearson Education, Inc. What is the product when selenium dioxide reacts with water? Selenium dioxide + Water → ? SeO2 + H2O → ? a. b. c. d. e. Se(OH)2 SeH2O2 Se + H2O3 H2SeO3 H2SeO2 + O Nonmetal oxides are acidic anhydrides and form their corresponding acid when they interact with water. Copyright © 2010 Pearson Education, Inc. Which of the following compounds is a strong acid? a. b. c. d. e. Copyright © 2010 Pearson Education, Inc. HNO3 H3PO4 H2CO3 CH3COOH H3BO3 Which of the following compounds is a strong acid? a. b. c. d. e. HNO3 H3PO4 H2CO3 CH3COOH H3BO3 Strong acids ionize essentially 100% in water. Copyright © 2010 Pearson Education, Inc. What would be the products of the following reaction? H3PO4 + 3 KOH → a. KO + H2O + PO3 b. KPO4 + 3 H2O c. K3P + H2O + 2 O2 d. K3PO4 + H2O + 2 O2 e. K3PO4 + 3 H2O Copyright © 2010 Pearson Education, Inc. ? ? ? What would be the products of the following reaction? H3PO4 + 3 KOH → K3PO4 + 3 H2O A salt a. KO + H2O + PO3 b. KPO4 + 3 H2O c. K3P + H2O + 2 O2 d. K3PO4 + H2O + 2 O2 e. K3PO4 + 3 H2O Copyright © 2010 Pearson Education, Inc. + water A solution with a [H3O+] of 1 x 10-8 M would be considered: a. b. c. d. e. Very acidic Slightly acidic Neutral Slightly basic Very basic Copyright © 2010 Pearson Education, Inc. A solution with a [H3O+] of 1 x 10-8 M would be considered: a. b. c. d. e. Very acidic Slightly acidic Neutral Slightly basic (pH = 8) Very basic Copyright © 2010 Pearson Education, Inc.