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OCT / NOV 2017 Question 4 (a) Deline what is meant by a weak electrolyte and a strong electrolyte by providing an example of each b) Calculate the pH of 0 100 cm2 of a o 85 mol dma soluon of HCI (u) 200 cm3 of a 0 15 mol dm 3 solution of sodium hydroxide (m) A mixture of the above two solutions c) Write the expression for the solublity product constant (Ksp) for a hypothetical species A2Bisi (d) Calculate the solubility of silver bromide in mg dm in pure water Kap (AgBr) 5 20 x 1013 [151

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STRONG ELECTROLYTES VERSUS WEAK ELECTROLYTES Strong electrolytes are compounds that completely dissociate into its ions when dissolved in water Weak electrolytes are compounds that partially dissociate into its ions when dissolved in water Can completely dissociate ||Can partially dissociate into ions into ions Include strong acids, strong bases, and some salts Include weak acids, weak bases, and some salts Visit www.vediaa.com

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