将pH=2的HCl溶液和pH=13的NaOH溶液等体积混合后，溶液的pH值为( )。A. 7.00 B. 12.50 C. 3.00 D. 11.00

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问题将pH=2的HCl溶液和pH=13的NaOH溶液等体积混合后，溶液的pH值为( )。

选项 A. 7.00 B. 12.50 C. 3.00 D. 11.00

答案 B

解析

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