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answer A,b,c and d

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E4. Answer the following questions from the given solubility curve. 100 90 80 NaNO 70 KC20 60 Cach KNO Solubility (g of salt in 100 g H,0) 50 Pb(NO3)2 KCI 40 Naci 30 20 КСО. 10 0 0 Ce (SO) 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) How much water is needed to dissolve 46.6 g of KCIO3 at 70°C? (1 mark) (b) Explain the different types of solutions based on solubility. (Use K2Cr2O7as an example? (2 marks) (c) Which solute would give a deposit of 40g if a saturated solution 1on an

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4.9.) At 70°C, 30g of K CIOZ soluble in 100 g of H2O Water needed to dissolve 46.6 g of KClO3 100 X 46.6 155.33g H2O Thus 155.33 g H₂O required to dissolve 46.69 Kc103. 30 by Three types of solution based on solubility i solubility increased exponentially with temprature increase. example - K2 (rz07 (ii) solubility increases constantly with temprature increase example - NaNO3, Pb(NO3)2 lii solubility decreases with increase in temprature example Ce₂(SO4)3. solution of Nall give saturated solution at go°c (409 in 100 g H20) and precipitation formed on cooling at 50°C, a Nall). d) In most of ionic compound solubility increases with increase in temprature. cl2(SO4)3 is exceptional inic compound whose solubilidy fiost decrease neith increase in temprature and frother remains constant by increasing. temprature