The molality of a solution that is made by dissolving a certain mass of benzene in 20 point 6 g of carbon tetrachloride is 0 point 5 2 9 m How many moles of benzene were dissolved? Use molality is equal to moles of solute over kilograms of solvent

Molality equals moles of solute divided by kilograms of solvent, so moles of benzene = molality × kilograms of carbon tetrachloride. Convert 20.6 g to 0.0206 kg, then calculate 0.529 mol/kg × 0.0206 kg = 0.0109 mol. Therefore, the answer is 0.0109 mol of benzene.

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