Regarding the determination of the effective buffer range of the buffer solution, which of the following is not the factor we should consider
A: pH= pKa±1
B: The buffer ratio is between 0.1 and 10
C: Large buffer capacity
D: High total concentration
A: pH= pKa±1
B: The buffer ratio is between 0.1 and 10
C: Large buffer capacity
D: High total concentration
举一反三
- (3)Choose the factors that can not determine the capacity of a buffer from the following a. pH of the buffer b. Concentration of buffer-component reservoirsc. Buffer-component ratio d. Buffer range A: a B: b C: c D: d
- The more the total concentration of a buffer, the more its buffer capacity at 298K.
- TheKaof the conjugate acid in a buffer solution is 1.0×10-6, it is theoretically inferred that the effective buffer range of the buffer solution is A: 6~8 B: 7~9 C: 5~7 D: 5~6
- A buffer solution must contain a relatively large concentration of acid and a similar concentration of base.
- Which<br/>of the following buffer solutions have the largest buffer capacity? ( ) A: 1L 0.1 M HAc solution + 1L 0.2 M NaAc solution B: 1L 0.15 M HAc solution + 1L 0.15 M NaAc solution C: 1L 0.1 M HAc solution + 1L 0.1 M NaAc solution D: 1L 0.2 M HAc solution +1L 0.1 M NaAc solution