We’re being asked to determine the moles of KF in 244 mL of 0.135 m KF solution.
Recall that molality is the ratio of the moles of solute and the mass of solvent (in kilograms).
In other words:
How many moles of KF are contained in 244 mL of 0.135 m KF solution? The density of the solution is 1.22 g/mL
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Based on our data, we think this problem is relevant for Professor Randles' class at UCF.