MCAT review (from diagnostic exam).txt

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Author:
rincrocci
ID:
164770
Filename:
MCAT review (from diagnostic exam).txt
Updated:
2012-08-02 01:35:44
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Mcat review questions
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mcat review questions
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  1. STP
    • ideal conditions
    • Temp of OC (273K), Pressure of 1atm
    • 1mole occupies a volume of 22.4L
  2. Charle's Law
    V2/V1 = T2/T1
  3. Boyle's Law
    P1V1/T1 = P2V2/T2
  4. Kinetic energy of gas
    KE = 3/2 nRT
  5. Bernoulli's fluids equation
    • A1v1 = A2v2
    • (area) (velocity)
  6. Normality to molarity
    • monoprotic (ie HCl) is equal
    • diprotic (ie H2SO4), 1N = .5M
  7. Tesla units
    1T = 1 N * sec/m * C
  8. Volt units
    1V = 1 J/C
  9. Buoyancy force
    • Fb = density(of FLUID) * volume * gravity
    • Fb = pvg
  10. Rate Law
    • Need to know the slow step (rate determining step)
    • aA + bB --> dD
    • rate = K[A][B]
  11. Gibbs free energy equation
    ^G = ^H - T^S
  12. enthalpy
    • measures heat of reaction (^H)
    • this is measured by bond dissociation energy, energy required to break a bond
    • ie: ^H value
  13. 1st law of thermodynamics
    • ^E (change in internal energy) = Q (heat added TO system) - W (work done BY system)
    • ^E = Q (to system) - W (by system)
  14. magnification
    • m= - i/o
    • if m is negative, image INVERTED
    • if m is greater than 1, image is farther than object
  15. focal length image and object equation
    1/f = 1/i + 1/o
  16. SN1 vs SN2
    • SN1: rxn w/multiple steps & intermediates. produces RACEMIX mixtures. rxn accelerated by PROTIC, Polar solvents
    • SN2: rxn proceeds with 1 step. accelerated by polar, APROTIC solvents
  17. chiral molecule characteristic
    rotates plane polarized light
  18. alcohol + heated with ACID
    double bond form and OH removed, so -ene formed
  19. Hemoglobin affinity with fetus vs human
    fetal Hb affinity is increased: Shift LEFT on curve
  20. higher metabolism animals vs human hemoglobin
    animals Hb affinity lower: Shift RIGHT on curve
  21. acidic conditions Hemoglobin affinity vs normal
    • Shift RIGHT on curve
    • Down Right Bohr!
  22. Ortho Meta Para groups
    • Ortho & Para directing:
    • -NH2
    • -OH
    • -NHCOR
    • -OR
    • -alkyl
    • -aryl
    • halogens
    • META directing:
    • N+(CH3)
    • NO2
    • CF3
    • CN
    • SO3H
    • CHO
    • COR
    • COOH
    • COOR
    • CONH2
  23. Thin Layer Chromotography (TLC)
    utilizes a silica gel that is placed in beaker with eluant and through CAPILLARY action, liquid drawn UP the gel with the mixture
  24. gel filtration
    • separates based on SIZE
    • small proteins go through pores in column and run slower vs the large proteins which run FAST thru
  25. Hardy Weinberg Equation
    • p + q = 1
    • p^2 + 2pq + q^2 = 1
    • (AA) + (Aa) + (aa) frequencies

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