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0.1mol/Lを100倍に薄めると塩酸の濃度は0.001mol/L

塩酸は強酸なので水溶液中で完全電離するので水素イオン濃度も0.001mol/L

PH=-log10[H+]
=-log10(0.001)
=-log10(1×10^-3)
=3

という感じです!

n___☼*

ありがとうございます😭
ばり分かりました!!

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