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Two beakers below are enclosed in a container as illustrated below. One beaker contains pure water (blue) while the other beaker contains an aqueous KCl solution (pink).
Which of the following diagrams illustrates how the beakers will appear after a significant period of time has passed?
Consider the following aqueous solutions: 0.010 m NaCl, 0.015 m fructose, and 0.012 m CaCl2. Rank these solutions in order of decreasing boiling point.
Consider an ideal solution at 25°C that is made up of 35.0 g of pentane (C5H12) and 35.0 g of hexane (C6H14). The vapor pressure of pentane and hexane at 25°C are 514 torr and 153 torr, respectively. Why is the composition of the solution different from the composition of the vapor phase?
Osmosis is the movement of water through semi-permeable membranes such as cell walls. Crenation occurs when water is expelled from the cell and causes it to shrivel. Hemolysis occurs when water enters the cell and causes it to swell and burst.
Given a patient's red blood cell with surrounding fluid depleted by electrolytes. Did creation or hemolysis occur?
Arrange the following aqueous solution in increasing freezing points assuming they have equal concentrations and completely dissociate.
We are given the following values:
Mass Citric Acid (C6H8O7) (g) = 1.708 g
Mass Acetic acid = 10.34 g
Freezing point of pure acetic acid = 16.6°C
Freezing point of citric acid-acetic acid mixture = 13.4 °C
Freezing point constant of acetic acid = 3.9 °C/m
a. Determine the molality in mol/kg of the mixture using the freezing point depression formula
b. Determine the moles of solute present in the mixture using the values of the molality calculated in part a and mass of solvent
c. Determine the experimental molecular weight of the solute in g/mol
d. Determine the theoretical molecular weight of the solute in g/mol
e. Determine the percent error between the theoretical and experimental molecular weight of the solute