問題詳情
33.某鹽酸300 mL加入0.5 M NaOH(aq) 200 mL後呈鹼性，若要中和之，需要加入1 M H2SO4(aq) 25 mL，此鹽酸濃度為多少M？ 
參考答案
答案：C[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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