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The normality of a solution prepared by dissolving 25.0 g of ca(oh)2 in water to make 250. ml solution is ________ n.

Respuesta :

kenmyna
the normality of a solution prepared by  dissolving 25.0g of Ca(OH)2  in water to make 250 ml solution is calculate as below

normality = molarity x number of hydrogen ions

molarity = moles/ volume in liters
 moles =mass/molar mass  = 25.0g/74=0.338moles

molarity =0.338 mole/ 250 x1000 =1.35M

normality = 1.35  x2 = 2.70 N

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