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CHM 111 Lecture Notes - Lecture 1: Scattering, Electrolyte, Tonicity

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29 Aug 2018

School

University of Miami

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Course

Professor

Valentine St. Hilaire

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CHM 111 verified notes

CHM 111 Lecture Notes - Lecture 1: Scattering, Electrolyte, Tonicity

CHM 111 Lecture Notes - Lecture 2: Alkali Metal, Alkaline Earth Metal, Lithium Hydroxide

Document Summary

A phase diagram relates the states of matter for a substance to temp and pressure. Changes in temp and pressure on the phase of a substance can change the states. Water"s unique properties are attributable to hydrogen bonding. Expands when freezes at 1 atm--- liquid ice is more dense than ice cubes. As vapor pressure increases the temperature decreases and vice versa. Normal boiling point- boiling point at 1 atm. To increase solubility of a gas into a liquid by decreasing the temp and raise the. Intramolecular forces- hold the atoms of molecules together, intermolecular forces don"t fusion, sublimation, evaporation- endothermic processes pressure. To increase solubility of a solid into a liquid increase in temperature and surface area. Factors affecting solubility- pressure, temp and structure. Liquids, solids, and intermolecular forces (12. 1 12. 5) 12. 1 friday night experiments: the discovery of graphene: graphene- thinnest (only one atom thick) strongest material.

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Related Questions

5. (20 pts, 2 pts each) True-False questions from chapter 11. Placea T for true or an F for false in the
blank provided. (WHEN YOU ANSWER PLEASE COPY PAST MY QUESTION INYOUR ANSWERING SPACE AND JUST TYPE True/False in the blankspaces.)
_____ Condensed phase means liquid phase only.
_____ Inter-molecular forces in pure molecular substances are theforces within molecules that hold them
together as the repeating units of the matter.
_____ London forces are electrostatic forces that involve induceddipole moments.
_____ Hydrogen bonding can occur in CH3-F, but not in CH4.
_____ Phase changes at constant pressure are characterized by thetemperature remaining constant until
one phase disappears.
_____ Hydrogen bonding accounts for the fact that ice is less densethan liquid water.
_____ Water boils at a lower temperature in New Orleans (which isbelow sea level) than it does at the
highest peak in the Ozark Mountains.
_____ For pure substances, volatility increases as attractiveforces increase.
_____ On a phase diagram (Pvap versus T), the critical point is anexample of a triple point.
_____ Solid metals tend to be ductile.
6. (20 pts, 2 pts each) True-False questions from chapter 13. Placea T for true or an F for false in the
blank provided.
_____ The First Law of Thermodynamics favors all solutionprocesses.
_____ Miscible describes two liquids that are mutually soluble inall proportions.
_____ The solubility of solid solutes in liquid solvents tends todecrease as temperature increases.
_____ The osmolality (or formality) of a 0.30m K2CrO4 solution is0.90 moles of ions /Kg.
_____ Boiling-point depression is one of the colligativeproperties.
_____