Skip to main content
Pearson+ LogoPearson+ Logo
Ch.16 - Acid-Base Equilibria
All textbooksBrown 14th EditionCh.16 - Acid-Base EquilibriaProblem 42
Chapter 16, Problem 42

Determine whether each of the following is true or false: (a) All strong bases are salts of the hydroxide ion. (b) The addition of a strong base to water produces a solution of pH > 7.0. (c) Because Mg(OH)2 is not very soluble, it cannot be a strong base.

Verified step by step guidance
1
Step 1: Understand the definition of a strong base. A strong base is a compound that completely dissociates into its ions in water. Common strong bases include hydroxides of alkali metals and some alkaline earth metals.
Step 2: Analyze statement (a). Strong bases are typically metal hydroxides that dissociate completely in water, forming hydroxide ions (OH^-). Consider whether all strong bases fit this description.
Step 3: Evaluate statement (b). Recall that the pH scale measures the acidity or basicity of a solution, with pH > 7 indicating a basic solution. Consider the effect of adding a strong base to water on the pH.
Step 4: Examine statement (c). Consider the solubility of Mg(OH)_2 and its dissociation in water. A strong base dissociates completely, but solubility affects the concentration of ions in solution.
Step 5: Summarize your findings for each statement, determining whether each is true or false based on the definitions and properties of strong bases.
Related Practice
Textbook Question

Addition of phenolphthalein to an unknown colorless solution does not cause a color change. The addition of bromthymol blue to the same solution leads to a yellow color. (b) Which of the following can you establish about the solution: (i) A minimum pH, (ii) A maximum pH, or (iii) A specific range of pH values?

405
views
Textbook Question

Addition of phenolphthalein to an unknown colorless solution does not cause a color change. The addition of bromthymol blue to the same solution leads to a yellow color. (c) What other indicator or indicators would you want to use to determine the pH of the solution more precisely?

955
views
Open Question
Is each of the following statements true or false? (a) All strong acids contain one or more H atoms. (b) A strong acid is a strong electrolyte. (c) A 1.0-M solution of a strong acid will have pH = 1.0.
Textbook Question

Calculate the pH of each of the following strong acid solutions: (b) 1.52 g of HNO3 in 575 mL of solution

867
views
Textbook Question

Calculate the pH of each of the following strong acid solutions: (b) 0.225 g of HClO3 in 2.00 L of solution

780
views
Open Question
Calculate [OH-] and pH for (a) 1.5 × 10^-3 M Sr(OH)_2 (b) 2.250 g of LiOH in 250.0 mL of solution (c) 1.00 mL of 0.175 M NaOH diluted to 2.00 L (d) a solution formed by adding 5.00 mL of 0.105 M KOH to 15.0 mL of 9.5 × 10^-2 M Ca(OH)_2.