Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
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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