A solution has [H+] = 1.0 x 10-10 M. The pOH of this solution is __________.?
回答 (1)
2017-11-18 12:16 am
✔ 最佳答案
Method 1 :pH = -log[H⁺] = -log(1.0 × 10⁻¹⁰) = 10.0
pOH = pKw - pOH = 14.0 - 10.0 = 4.0
====
Method 2 :
[OH⁻] = Kw / [H⁺] = (1.0 × 10⁻¹⁴) / (1.0 × 10⁻¹⁰) M = 1.0 × 10⁻⁴ M
pOH = -log[OH⁻] = -log(1.0 × 10⁻⁴) = 4.0
收錄日期: 2021-04-18 18:00:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20171117161235AAG3okD