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You have a flask weighing 1 2 1 . 2 1 4 g . To this flask, you added 2 5 . 0 0 mL

You have a flask weighing 121.214 g. To this flask, you added 25.00 mL KCl(aq) solution. You weigh the flask, it is now 150.234 g. You then take the flask to a heating source and evaporate all solvents. When the flask cool down to room temperature, you weigh the flask again, it is 124.231 g. What is the molality of the KCl (aq) solution? The amus for K is 39 and Cl is 35.5, respectively

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