Calculate the freezing point of a solution of 30.0 g methyl salicylate, C7H6O2, dissolved in 800....

Calculate the freezing point of a solution of 30.0 g methyl salicylate, C7H6O2, dissolved in 800. g of benzene, C6H6. Kf for benzene is 5.10

Expert Solution

Moles of methyl salicylate=30.0/122=0.246mol

Molality of solution=moles of solute/mass of solvent in kg

=0.246/0.800=0.307 m

Depression in freezing point, dT_f=k_f*molality

=5.10*0.307=1.568?

Freezing point of benzene=5.50-1.57

=3.93 ?

queen_honey_blossom answered 1 year ago

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