calculate the normality of mixture when 200ml of 0.2N HCl and 100ml of 0.5N NaOH are mixed

Dear Student,

N1V1+N2V2=N3(V1+V2)Here, N1=0.2 , V1=200 mlN2=0.5, V2=100 mlor, 0.2×200+0.5×100=N3(200+100)or, 40+50=N3×300or N3=90300=0.3 N

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