下列各混合溶液，具有pH的缓冲能力的是（）
A: 100mL1mol/LHAc＋100mL1mol/LNaOH
B: 100mL1mol/LHCl＋200mL2mol/LNH3·H2O
C: 200mL1mol/LHAc＋100mL1mol/LNaOH
D: 100mL1mol/LNH4Cl＋100mL2mol/LNH3·H2O
A: 100mL1mol/LHAc＋100mL1mol/LNaOH
B: 100mL1mol/LHCl＋200mL2mol/LNH3·H2O
C: 200mL1mol/LHAc＋100mL1mol/LNaOH
D: 100mL1mol/LNH4Cl＋100mL2mol/LNH3·H2O
举一反三
- 下列各混合溶液，具有pH的缓冲能力的是（） A: 100mL1mol/LHAc＋100mL1mol/LNaOH B: 100mL1mol/LHCl＋200mL2mol/LNH3·H2O C: 200mL1mol/LHAc＋100mL1mol/LNaOH D: 100mL1mol/LNH4Cl＋100mL2mol/LNH3·H2O
- Which of the following mixtures can work as a buffer and has the strongest buffer capacity? A: 200 mL of 0.20 mol/L [img=77x22]1803a221d13ee32.png[/img] and 100 mL of 0.20 mol/L NaOH B: 200 mL of 0.10 mol/L [img=77x22]1803a221d13ee32.png[/img] and 200 mL of 0.10 mol/L NaOH C: 200 mL of 0.10 mol/L [img=77x22]1803a221d13ee32.png[/img] and 100 mL of 0.10 mol/L NaOH D: 200 mL of 0.10 mol/L [img=36x22]1803a221e9e372e.png[/img] and 200 mL of 0.10 mol/L HC1
- 某温度下由2 mol A和3 mol B两种组分构成的液相混合物总体积为100 mL，测得A的偏摩尔体积为20 mL/mol，则B的偏摩尔体积为： A: 120 mL/mol B: 80 mL/mol C: 30 mL/mol D: 20 mL/mol
- All of the following mixtures can function as a buffer solution, except A: equal volumes of 0.10 mol/L HAc and 0.10 mol/L NaAc B: 100 mL of 0.10 mol/L HAc and 50 mL of 0.10 mol/L NaOH C: 100 mL of 0.10 mol/L HAc and 100 mL of 0.10 mol/L NaOH D: 50 mL of 0.10 mol/L NH3 and 25 mL of 0.10 mol/L HC1
- 下列溶液中Cl－的物质的量浓度最大的是( ) A: 200 mL 2 mol/L MgCl2溶液 B: 1 000 mL 2.5 mol/L NaCl溶液 C: 250 mL 1 mol/L AlCl3溶液 D: 300 mL 5 mol/L KClO3溶液