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4. a) A solution of potassium hypochlorite (KOCI) is prepared by dissolving 0.61 g of potassium hypochlorite in water in a 25

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DATS PAGE Vo Soln KCLO (Oml OF 3KCe + H20 +I KocLt 2H CR +2KT 2 NaI Na, Sy O 2Na2 SiO3 +I, t KCe MoLes RF MOLES OF 3 OLE OF I4 a) Molar mass of KOCl = 90.55g

Mass of KOCl taken = 0.61g

Moles of KOCl = 0.61/90.55= 0.00674 moles

Volume of solvent/ solution = 250 ml = 0.25 L

Hence, molarity = moles of solute / volume of solution

M= 0.00674/0.25= 0.027 M (approx)

4 b) see the image attached

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