brine water collected from a reverse osmosis desalination plant. The collected water sample was required to be analyzed and it has following composition. (i) If the water sample contains 2.2 g of potassium chloride (KCl) per 250 mL of solution, determine its molarity. (ii) The sample contains CaCl2 and its concentration was found to be 0.02M. Calculate grams of CaCl2 present in 50 mL of

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