The Kwis 3.8×10-14 at 40℃，the pH of water is A: 5.72 B: 6.72 C: 7.28 D: 8.28
The Kwis 3.8×10-14 at 40℃，the pH of water is A: 5.72 B: 6.72 C: 7.28 D: 8.28
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The Kwis 3.8×10-14 at 40℃，the pH of water is A: 5.72 B: 6.72 C: 7.28 D: 8.28