5.8871 1. Mass NaCi (g) 100.0 2. Volume of water (mL) 51.5023 3. Mass ice (g) -2.85 Freezing point of the solution ('C) Part 1 Calculations What is the predicted value of i for NaC? For electrolytes, assume i the number of ions per formula unit. Calculate the molality of the solution (m) Use the equation: T, (zolution) - T, (zolvent) = -i K; m The freezing point of pure water is 0.00 °C Ky for water is 1.86 'C/m Mass of solvent in grams Add together the masses of the liquid water and ice added to the calorimeter. Convert the volume of liquid water to mass using 1.000 g/ml as the density of water (see procedure for volume used). of
5.8871 1. Mass NaCi (g) 100.0 2. Volume of water (mL) 51.5023 3. Mass ice (g) -2.85 Freezing point of the solution ('C) Part 1 Calculations What is the predicted value of i for NaC? For electrolytes, assume i the number of ions per formula unit. Calculate the molality of the solution (m) Use the equation: T, (zolution) - T, (zolvent) = -i K; m The freezing point of pure water is 0.00 °C Ky for water is 1.86 'C/m Mass of solvent in grams Add together the masses of the liquid water and ice added to the calorimeter. Convert the volume of liquid water to mass using 1.000 g/ml as the density of water (see procedure for volume used). of
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter10: Solutions
Section: Chapter Questions
Problem 42QAP: Antifreeze solutions are aqueous solutions of ethylene glycol, C2H6O2(d=1.12g/mL). In Connecticut,...
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Moles of solute (mol)
Use the molality to convert kg of solvent to moles of solute.
Hints: molality of the solution (m) 0.76612903225806
Mass of solvent in grams 151.5
Mass of solvent in kilograms 0.1515
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