Part II. Problem Solving (20 pts) Instruction: Solve the colligative property questions. Refer below the values needed in the equation. Show your solution. Solvent Freezing Kf (°C/m) Kb(*C/m) Boiling point(°C) Point(°C) Water 100 1.858 0.521 Acetic acid 16.60 118.5 3.59 3.08 1. At what temperature will a 2.5 molar of salt in Acetic acid (vinegar) boil?
Part II. Problem Solving (20 pts) Instruction: Solve the colligative property questions. Refer below the values needed in the equation. Show your solution. Solvent Freezing Kf (°C/m) Kb(*C/m) Boiling point(°C) Point(°C) Water 100 1.858 0.521 Acetic acid 16.60 118.5 3.59 3.08 1. At what temperature will a 2.5 molar of salt in Acetic acid (vinegar) boil?
Chemical Principles in the Laboratory
11th Edition
ISBN:9781305264434
Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Chapter3: Resolution Of Matter Into Pure Substances, Ii. Fractional Crystallization
Section: Chapter Questions
Problem 1ASA: Using Figure 3.1, determine a. the number of grams of CuSO45H2O that will dissolve in 100g of H2O at...
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note: the question number 1 is 2.5 molal not molar.
Transcribed Image Text:Part II. Problem Solving (20 pts)
Instruction: Solve the colligative property questions. Refer below the values
needed in the equation. Show your solution.
Solvent
Freezing
Boiling
Kf (°C/m)
Kb(*C/m)
Point(°C)
point(°C)
Water
100
1.858
0.521
Acetic acid
16.60
118.5
3.59
3.08
1. At what temperature will a 2.5 molar of salt in Acetic acid (vinegar) boil?
2. A solution of 146 grams of NaCI (Molar mass = 58.5g/mole) in 1000 grams of
water is formed. At what temperature is the solution going to freeze?
3. Liquid ethylene glycol, C2H4(OH)2 (MM = 62g/mole), is a prime antifreeze
component for your car. Assuming the addition of C2H4(OH)2 to a car radiator
containing 5 liters of water. To lower the freezing point from 0°C to -18°C, how
many moles should be added to 5 liters of water?
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