Podcast
Questions and Answers
Which pair of substances forms a buffered aqueous solution?
Which pair of substances forms a buffered aqueous solution?
- H3PO4 and NaH2PO4 (correct)
- H2SO4 and CH3COOH
- HNO3 and NaNO3
- HCl and NaCl
What is the purpose of the Henderson-Hasselbalch equation?
What is the purpose of the Henderson-Hasselbalch equation?
- To calculate the pH of a strong acid solution
- To calculate the pH of a buffered solution (correct)
- To calculate the pH of a strong base solution
- To calculate the pH of a weak acid solution
What is the name of the effect that occurs when a compound containing an ion in common with a dissolved substance is added to a solution at equilibrium?
What is the name of the effect that occurs when a compound containing an ion in common with a dissolved substance is added to a solution at equilibrium?
- Common ion effect (correct)
- Equilibrium shift
- Ion adduct
- Shift ion
What is the pH of a solution prepared by mixing 500 mL of 0.10 M NaOCl and 500 mL of 0.20 M HOCl?
What is the pH of a solution prepared by mixing 500 mL of 0.10 M NaOCl and 500 mL of 0.20 M HOCl?
Which of the following is the conjugate acid of NH3?
Which of the following is the conjugate acid of NH3?
Which of the following is the best choice for preparing a buffer with a pH of 3.5?
Which of the following is the best choice for preparing a buffer with a pH of 3.5?
What happens to the pH of a solution when sodium acetate is added to a solution of acetic acid?
What happens to the pH of a solution when sodium acetate is added to a solution of acetic acid?
In a buffer solution, which component/resists the change in pH when small amounts of acid or base are added?
In a buffer solution, which component/resists the change in pH when small amounts of acid or base are added?
What happens to the percentage of ionization when a strong acid is added to a weak acid?
What happens to the percentage of ionization when a strong acid is added to a weak acid?
What effect does dilution have on a buffer solution's ability to resist changes in pH?
What effect does dilution have on a buffer solution's ability to resist changes in pH?
If a strong base is added to a buffered solution, what will happen to the pH of the solution?
If a strong base is added to a buffered solution, what will happen to the pH of the solution?
What is the consequence of having a buffer solution where the concentrations of the weak acid and its conjugate base are equal?
What is the consequence of having a buffer solution where the concentrations of the weak acid and its conjugate base are equal?
Flashcards are hidden until you start studying
