浓度为 c mol/L 的 Na2CO3(H2CO3 的一级和二级解离常数为 Ka1、Ka2)溶液中氢离子(或氢氧根)浓度计算最简式为
A: [H+] = (Ka1×c)^(1/2)
B: [H+] = (Ka2×c)^(1/2)
C: [OH-] = (Kw/Ka1×c)^(1/2)
D: [OH-] = (Kw/Ka2×c)^(1/2)
A: [H+] = (Ka1×c)^(1/2)
B: [H+] = (Ka2×c)^(1/2)
C: [OH-] = (Kw/Ka1×c)^(1/2)
D: [OH-] = (Kw/Ka2×c)^(1/2)
举一反三
- 浓度为 c mol/L 的 Na2CO3(H2CO3 的一级和二级解离常数为 Ka1、Ka2)溶液中氢离子(或氢氧根)浓度计算最简式为 A: [H+] = (Ka1×c)^(1/2) B: [H+] = (Ka2×c)^(1/2) C: [OH-] = (Kw/Ka1×c)^(1/2) D: [OH-] = (Kw/Ka2×c)^(1/2)
- 浓度为 c mol/L 的 Na2CO3(H2CO3 的一级和二级解离常数为 Ka1、Ka2)溶液中氢离子(或氢氧根)浓度计算最简式为 A: [H+] = (Ka1×c)^(1/2) B: [H+] = (Ka2×c)^(1/2) C: [OH-] = (Kw/Ka1×c)^(1/2) D: [OH-] = (Kw/Ka2×c)^(1/2)
- 浓度为 c mol/L 的 Na2CO3(H2CO3 的一级和二级解离常数为 Ka1、Ka2)溶液中氢离子(或氢氧根)浓度计算最简式为 A: [H+] = (Ka1×c)^(1/2) B: [H+] = (Ka2×c)^(1/2) C: [OH-] = (Kw/Ka1×c)^(1/2) D: [OH-] = (Kw/Ka2×c)^(1/2)
- 浓度为 c mol/L 的 NaAc(HAc 的解离常数为 Ka)溶液中氢离子(或氢氧根)浓度计算最简式为 A: [H+] = (Ka×c)^(1/2) B: [OH-] = (Ka×c)^(1/2) C: [H+] = (Kw/Ka×c)^(1/2) D: [OH-] = (Kw/Ka×c)^(1/2)
- 【单选题】已知H 3 PO 4 的各级离解常数以Ka 1 、Ka 2 、Ka 3 表示,则HPO 4 2 - 作为共轭碱的离解常数为: A. Kw/Ka 1 B. Kw/Ka 2 C. Kw/Ka 3 D. Ka 2 /Kw