Multiple Choice
A buffer is to be prepared by adding solid sodium acetate to 0.10 M CH3COOH. Which of the following concentrations of sodium acetate will produce the most effective buffer?
A) 3.0 M CH 3COONa
B) 2.5 M CH 3COONa
C) 2.0 M CH 3COONa
D) 1.5 M CH 3COONa
E) 0.30 M CH 3COONa
Correct Answer:
Verified
Correct Answer:
Verified
Q34: A solution is prepared by adding 500
Q35: The concentration of the complex ion in
Q36: A 10.0-mL sample of 0.75 M CH<sub>3</sub>CH<sub>2</sub>COOH
Q37: If the pH of a buffer solution
Q38: Which of the following aqueous mixtures would
Q40: Which of the following substances has the
Q41: A 25.0-mL sample of 0.10 M C<sub>2</sub>H<sub>3</sub>NH<sub>2
Q42: Which of the following has the highest
Q43: The salts X(NO<sub>3</sub>)<sub>2 </sub>and Y(NO<sub>3</sub>)<sub>2</sub> (where X<sup>+</sup>
Q44: A phosphate buffer (H<sub>2</sub>PO<sub>4</sub><sup>−</sup>/HPO<sub>4</sub><sup>2</sup><sup>−</sup>) has a pH