Unformatted text preview: 0.005 g. Trial #1 Trial #2 Fractional uncertainty in the Mass of Naphthalene
Fractional uncertainty in the Mass of Sulfur
Fractional uncertainty in the Freezing Point Lowering
Fractional uncertainty in the Molar Mass of Sulfur
Uncertainty in the Molar Mass of Sulfur
Average Uncertainty in the Molar Mass of Sulfur Spring 2014 ± g/mole Exp 16 – Molar Mass from Freezing Pt Depression
Dept. of Chemistry POST-LABORATORY QUESTIONS 1. Define Molality. (2 points) 2. Why is it necessary to express the concentration of sulfur in units of molality instead of
molarity? (2 points) 3. How will your results be affected if some of the sulfur sticks to the walls of the test tube? Be
specific. (3 points) 4. How will your results be affected if the sulfur does not dissolve completely? Be specific.
(3 points) Spring 2014...
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This document was uploaded on 02/23/2014 for the course CHEMISTRY 1121L at St. Johns Duplicate.
- Spring '14