用0.1mol/LNaOH滴定0.1mol/LHAc(pKa=4.74)的突跃范围为7.7~9.7,若用0.1mol/LNaOH滴定0.1mol/LpKa=2.74的某酸,pH突跃范围为()
- A、8.7~10.7
- B、6.7~9.7
- C、6.7~10.7
- D、5.7~9.7
正确答案:D
答案解析:有
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用0.1mol/LNaOH滴定0.1mol/LHAc(pKa=4.74)的突跃范围为7.7~9.7,若用0.1mol/LNaOH滴定0.1mol/LpKa=2.74的某酸,pH突跃范围为()
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