常温下， 的盐酸溶液的 pH 为：
Answer and explanation
Correct answer: C. 3
其他选项为什么不对： 盐酸呈酸性，pH 应小于 7，且代入 只能得到 。
- Step 1: 盐酸是强酸，完全电离，。
- Step 2: 。
Answer
3.
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Correct answer: C. 3
Free questions with an explanation for every one, and full timed Gaokao mock tests.