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    Freeze! The Effect of Super Cooling Water on Nucleation in Aqueous Solutions Hunter B. Tuck Author Note Hunter B. Tuck‚ Southside Virginia Community College‚ Keysville‚ VA. Contact: huntertuck1212@gmail.com Abstract This particular study demonstrated the overall effects of super cooling different types of aqueous solutions. In similar studies conducted upon super cooling water‚ researchers have only used distilled water in their experiments. In this study‚ however‚ rain‚ tap‚ and purified bottled

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    Electrolyte and Nonelectrolytes Electrolytes •Separates in water forming a solution that conducts electric current •IONIC COMPOUNDS Non- electrolytes • does not allow the flow of an electric current • COVALENT COMPOUNDS Freezing Point Depressio n Freezing Point Depression Adding a solute to a solvent decreases freezing point of the solvent Amount of solute Freezing Point of solvent Tf° (pure solvent) > Tf (solution) Freezing point of pure solvent – 0o Tf = Tf° - Tf Freezing Point Depression

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    Glucose Sucrose Osmolality

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    The solution my group used was NaCl‚ and we used varying concentrations to see if that would affect the osmolality of our potato cores. Our explanatory hypothesis was that concentrations of a solution and osmolality of potato cores would be unrelated. We predicted that even though there were varying concentrations of solute‚ potato osmolality would be

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    Purpose : The experiment this week had two different purposes. The first is to teach us about freezing points. This lab was designed to show us the freezing point of a pure solvent‚ in comparison to a solvent in a solution with a non-volatile solute. The second goal of the experiment is to teach students about osmosis. In the experiment‚ we got to observe osmosis as well as understand dialysis. Procecure : Part 1. Colligative Properties 1. Create a water

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    water concentration of a solution outside the cell is lower than the concentration inside the cell‚ water will move from the inside to the outside of the cell due to osmosis. As we increase the concentration of the NaCl solutions we have used (0.1M to 0.6M)‚ more moles of NaCl are dissolved in the solution. Thus‚ the solutions increases in solute concentration but decreases in water concentration. We can therefore assume; the higher the concentration of the NaCl solution‚ the higher the number of

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    unsurpassable‚ which discourage the development of a molecular kinetic theory of liquids that will extend t b details. It will be shown now in this paper that the size of the molecules of the solute in an undissociated dilute solution can be found from the viscosity of the solution and of the pure solvent‚ and from the rate of diffusion of the solute into the solvent‚ if the volume of a molecule of the solute is large 36 ’ 37 compared with the volume of a molecule of the solvent. For such

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    undergoes crenation of the cell membrane‚ when it is placed in a solution with a HIGH concentration of solute. What type of solution causes crenation? _Hypertonic_____ 14. An animal cell undergoes cytolysis‚ or stretching of the cell membrane‚ when it is placed in a solution with a very LOW concentration of solute. What type of solution causes cytolysis? _Hypotonic_____ Answer the following questions about isotonic Solutions 15. The concentration of the solutes inside the cell is _equal_____

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    the shell discinigrates it will become rubbery from the acetic acid‚ at this point the egg could very well bounce. | |  Hypothesis: The hypothesis made for this experiment would be that the egg will grow in width after sitting in each solution for a certain length of time.   Materials: To do this experiment‚

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    Stoichiometry Lab Report

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    This is because as the solution becomes more dilute‚ the product [H3O+][Ac–] decreases more rapidly than does the [HAc] term. At the same time the concentration of H2O becomes greater‚ but because it is so large to start with (about 55.5M)‚ any effect this might have is negligible

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    ENGINEERING July 26‚ 2012 ------------------------------------------------- ABSTRACT ------------------------------------------------- Before proceeding to test the next solution‚ we must first clean the cuvette‚ using similar steps earlier. First‚ we rinse with water‚ then with the solution‚ and then we fill it up and test. We tested for the wavelength standard 5 at which there was maximum absorption. At this wavelength‚ we tested the absorbance of all the standards. Table

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