find the initial mole fraction and initial mass % of the solute (Sucrose)

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Given these values, find the initial mole fraction and initial mass % of the solute (Sucrose)

Solvent (water) weight: 329g

Solute (sucrose) weight: 232g

Solute (sucrose) Molar mass=342.3

moles of solute (sucrose) = .678

Expert Solution
Step 1

Mole fraction of sucrose = number of moles of sucrose/total moles 

Number of moles = mass/molar mass 

Molar mass of water = 18.0153 g/mol 

 

Percent by mass of sucrose = (mass of sucrose/mass of solution) × 100%

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