Unformatted text preview: of the mixture. B. Boiling Pt Elevation 1. Prepare 0.1 molal rock salt soln in a 250 mL beakerby dissolving the appropriate amount of rock salt in 50 mL dH2O. Assume that the composition of rock salt is solely NaCl. Heat the soln and monitor the temperature of the solution. Record the constant temperature at which the solution boils. Notice the increase in the normal boiling pt. of dH2O (Note: Use thermometer with a>100C graduation) 2. Repeat procedure 1 using 0.3 molal rock salt soln instead. IV. Special Notes:-down sink V. Tabulation of Data:...
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- Fall '07
- Chemistry, Freezing-point depression, rock salt, Boiling Pt Elevation