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Chemistry II-H Midterm Review
Important Terms
24
Chemistry
01/22/2006

Term
 One inch equals how many centimeters?
Definition
 2.54 cm
Term
 One mile equals how many kilometers?
Definition
 1.609 km
Term
 How many grams in a pound?
Definition
 454 grams
Term
 How many pounds in a kilogram?
Definition
 2.205 lb
Term
 How many liters are in a gallon?
Definition
 3.785 L
Term
 How many quarts equal one liter?
Definition
 1.057 qt
Term
 Name 6 strong acids.
Definition
 HCl, HNO3, H2SO4, HI, HBr, HClO4
Term
 Fill in the blank. Oxidation is ____. Reduction is ____.
Definition
 Oxidation is LOSS. Reduction is GAIN. (of electrons)
Term
 In combustion, you add ___ to a compound on the reactant side, and recieve ___ and ___ on the product side, always.
Definition
 In combustion, you add O2 to a compound on the reactant side, and recieve CO2 and H2O on the product side, always.
Term
 What is the equation for a coffee cup calorimeter problem?
Definition
 -[mass x specifc heat x change in Temp.] = [mass x S.H. x change in Temp.]
Term
 What is the heat of formation?
Definition
 The amount of heat energy released or absorbed when 1.00 mol of a neutral compound or ion is formed from its elements at STP. Heat of reaction = summation of [heats of formation of products] - summation of [heats of formation of reactants]
Term
 What is formal charge?
Definition
 Formal charge = the number of electrons in the valence shell - [number of bonds on atoms + number of nonbonding electrons on the atom]
Term
 What is Graham's Law?
Definition
 R1/R2 = [MM2/MM1]1/2
Term
 What do n, L, ML, and Ms mean?
Definition
 n = the principle quantam number and tells the size and amount of energy. [the higher the n the higher the energy].L = tells the shape and type [ 0 is s, 1 is p, 2 is d, 3 is f]ML = tells the number of positions and which orbital electrons are in.Ms = tells the direction of the spin. [1/2 points up, -1/2 points down.]
Term
 Aufbau's principle states...
Definition
 All electrons will fill the energy shell with the lowest energy first.
Term
 Hund's said:
Definition
 Electrons will fill each orbital box before pairing up.
Term
 Pauli's Exclusion Principle states...
Definition
 No two electrons will have the same set of quantam numbers, and in an orbital box, electrons must be of opposite spins.
Term
 What are the standard gas measurements?
Definition
 1.0 atm = 760 torr = 760mmHg = 14.7 psi = 101.3 kPa
Term
 What are Boyle's, Charles', Gay Lussac's, Avogadro's, Combined, Dalton's, and Ideal Gas Laws?
Definition
 Boyles = P1V1 = P2V2Charles = T1V2 = T2V1Gay Lussacs = P1T2 = P2T1Avogadros = V1n2 = V2n1Combined = P1V1T2 = P2V2T1Daltons = Ptotal = P1 + P2...and P1n2 = P2n1Ideal = PV = nRT
Term
 A solid going directly to a gas phase is said to ______.
Definition
 A solid going directly to a gas phase is said to sublime.
Term
 Name three types of molecular bonds.
Definition
 Hydogen bonding [Strongest, Polar H + F,O,N], Dipole-Dipole [Polar], and London [Nonpolar].
Term
 The formulas for Simple Cubic, Body Centered Cubic, and Face Centered Cubic are and how many atoms/cell:
Definition
 Simple = 2r = s1 atom/cellBCC = 4r = s[square root of 3]2 atoms/cellFCC = 4r = s[square root of 2]4atoms/cell
Term
 What are the freezing and boiling constants for water?
Definition
 Freezing = 1.86 CBoiling = .512 C
Term
 What is the definition of osmotic pressure, and what is the formula?
Definition
 The amount of pressure that must be applied to the surface of a solution to stop osmosis. pi = MRT.
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