A buffer solution must contain a relatively large concentration of acid and a similar concentration of base.
举一反三
- 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
- The more the total concentration of a buffer, the more its buffer capacity at 298K.
- The main difference between interstitial fluid and plasma is A: The protein concentration is higher in plasma B: The Na+ concentration is higher in plasma C: The protein concentration is higher in interstitial fluid D: The Na+ concentration is higher in interstitial fluid E: The organic acid concentration is higher in plasma
- G-P(Gummel-Poon)<br/>model is used in uniform doping concentration in the base. (<br/>)
- (1) The weak monoprotic acid HA is 2.5% dissociated in 0.10 mol·L-1solution. What is the acidity constant, Ka, of HA?(2)A certain solution of HA has a pH=2.51. What is the concentration of the solution?