d 4 92 A mixed solution of potassium hydroxide and sodium carbonate required 15 mL of an N 20 HCl solution when titrated with

Question

d 4 92 A mixed solution of potassium hydroxide and sodium carbonate required 15 mL of an N 20 HCl solution when titrated with phenolphthalein as an indicator But the same amount of the solution when titrated with methyl orange as indicator required 25 mL of the same acid The amount of KOH 93

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