Question

A solution contains 750 g of ethanol and 85.0 g of glucose (180 gmol?1). The volume...

A solution contains 750 g of ethanol and 85.0 g of glucose (180 gmol?1). The volume of the solution is 810.0 mL.

a. Determine the density of the solution.

b. Determine the mole fraction of glucose.

c. Determine the molarity of the solution.

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Homework Answers

Answer #1

a. Density of solution=Mass of component/volume

                                =(750+85)/810=1.031 g/ml

b. Moles of ethanol=750/46=16.304 mol

Moles of glucose=85.0/180=0.472 mol

Mole fraction of glucose=0.472/(0.472+16.304)

                                =0.028

c. Molarity of solution=Moles of glucose/volume of solution in ltr

                                =0.472/0.810=0.5827 M

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