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1. It is a warm summer day (30C), so you decided to make a nice glass of syrup. Suppose you add 75 g of sugar
1. It is a warm summer day (30C), so you decided to make a nice glass of syrup. Suppose you add 75 g of sugar to a glass containing 125 mL of water. You may assume 1 mL = 1 g. The solubility limit of sugar in water at 30C is 65 wt% sugar. 100 80 Solubility limit 60 Temperature (C) Liquid solution (syrup) Liquid solution 40 solid sugar 20 o Sugar 0 Water 100 20 80 40 60 60 40 80 20 100 0 Composition (wt%) After taking a small sip (of negligible quantity of syrup), you decide that the drink isn't sweet enough. You add another 225 g of sugar to the glass and give it a good stir. a) Calculate the new composition, in wt% sugar. Which phase(s) are present? (1.5 Marks) b) What is the composition within each phase (in wt% sugar), and what is the mass fraction of each phase? (3 Marks) You now decide to warm the glass up to 80C, for some reason. c) Which phase(s) are present? What is the mass fraction, and what is the composition (in wt% sugar)? (1.5 Marks) d) If you want to induce the precipitation of sugar from this point, state two methods that could be used to accomplish this. (2 Marks) Note, round all your answers to two decimal places
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