In a titration reaction, 19.4 cm³ of sodium hydroxide, NaOH neutralized 25 cm' of 0.05 moldm'ethanedioic (oxalic)H2C2O4 acid. Calculate the concentration of the sodium hydroxide solution. A 0.05 mol dm B 0.13 mol dm C 0.06 mol dm D 0.12 mol dm 5.

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