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24 Cards in this Set
- Front
- Back
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Molarity
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the concentration of a solution.
moles solute/volume of solution |
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pH Scale
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pH = -log[H+]
Higher pH = lower [H+] = Basic sol. Lower pH = higher [H+] = Acidic sol. |
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Oxidation - Reduction Reactions
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chemical reactions in which electrons are transferred.
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Reduction
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The element gains electrons
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Oxidation
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The element loses electrons
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OIL RIG
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Oxidation Involves electron Lose
Reduction Involves electron Gain |
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Reducing Agent
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The reactant that gives away electrons (does the reducing)
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Oxidizing Agent
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The reactant that takes away electrons (is reduced)
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titrant
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solution of known concentration
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energy
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the capacity to do work
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work
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a force applied over a distance
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pressure
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the force applied to an area
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kinetic energy
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energy of motion
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thermal energy
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energy due to the motion of atoms & molecules.
a type of kinetic energy |
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chemical potential energy
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energy in chemical bonds in elements & compounds that can be converted to thermal energy or work by a chemical reaction
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1st Law of Thermodynamics
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energy can neither be created nor destroyed. energy can be converted from one form to another but is always conserved.
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heat
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depends on the sample size (extensive property)
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temperature
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doesnt depend on the sample size (intensive property)
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q
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heat that is tranferred
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endothermic reax
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q > 0. heat flows into the system
ΔH > 0 |
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exothermic reax
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q < 0. heat flows out of the system
ΔH < 0 |
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calorie
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the amount of heat required to increase the temp of 1.00 g of water by 1.00 degree C.
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heat of fusion
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heat required to convert a solid at its melting point to a liquid
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heat of vaporization
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heat requied to convert a liquid at its boiling point to a gas
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