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Chemistry Exam 2
Chemistry Equations/Facts for Exam 2 University of Toledo
11
Chemistry
Undergraduate 1
10/13/2009

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Term
Redox Reaction, the element loses electrons
Definition
the element is a reducing reagent, and undergoes the the oxidation half reaction, it is oxidized
Term
Redox Reaction, the element gains electrons
Definition
the element is the oxidizing agent, it is undergoing reduction, it is being reduced
Term
equation for density derived from PV=nRT
Definition
d = PM/RT d= density p = pressure n = moles(grams over molar mass) R =.0821(constant) T=temperature in Kelvin(degrees Celsius + 273.15)
Term
equation for Molar Mass derived from PV=nRT
Definition
M=dRT/P M = molar mass d = density R = .0821(constant) T = temperature in Kelvins(degrees Celsius + 273.15)
Term
equation for mass derived from PV=nRT
Definition
m=PVM/RT m = mass P = pressure in atmospheres, V = volume in liters, R=.0821(constant) T=temperature in Kelvins
Term
Equation for Diffusion and Effusion
Definition
r(1)^2 * FW(1) = r(2)^2 * FW(2) r = the perspective rates of the elements, and FW = to there formula weight/ molar mass
Term
equation that relates dE with specific variables for the composition of q and w
Definition
(d)E =ms(d)t - P(d)V (d)E= change in energy m = mass, s= specific heat, (d)t = the change in temperature P = pressure in atm, d(V)= the change in volume OR (d)E=ms(d)t-(d)nRT (d)n = change in moles
Term
conversion factor from L*atm to Joules
Definition
(L*atm) * 101.3 = Joules
Term
Two Gas constants
Definition
R(1)=.0821 R(2)=8.314
Term
equation for work from gas on the atmosphere
Definition
w=-P(d)V w=work P=pressure in atm, (d)V= the change in volume
Term
Equation relating change in energy, wavelength, and planck's constant and the speed of light
Definition
λ=ch/ΔE
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