Chem 129 FINAL EXAM Questions And Answers (Verified And Updated) Isotopes - answer✔✔Same # protons, different # of neutrons 10 5 B (Mass #/Atomic Mass) - answer✔✔p=5 N=10 -5=5 e=5 Orbital diagrams - answer✔✔n=# in orbital diagram l: s=0 p =1 d=2 f=3 Ml= timeline w/ 0 Spin: always +1/2 and -1/2 energies affecting atomic orbitals - answer✔✔nuclear charge shielding (reduced full nuclear charge to Zeff) Atomic radus - answer✔✔decreases b/c INCREASED electrostatic attraction Electron affinity - answer✔✔-the energy change when an electron is accepted by atom in gases state (anion formed) -smaller electron affinity b/c larger atom with small positive nuclear charge ------- weakest electron attraction force to stabilize Isoelectric - answer✔✔becomes d ifferent element with charges (striving to be a noble gas) Lattice energy - answer✔✔measure of strengh of ionic bonds: 1) charge up LE up 2)ion size up LE down greater eletrostatic fore (magnitude larger, ions smaller so distance is shorter) Hydrogen bond - answer✔✔bonding with H is FON ion dipole - answer✔✔charged polar bond dipole -dipole interactions - answer✔✔attractive forces that act between polar molecules dipole -induced dipole forces - answer✔✔1/2 polar 1/2 non polar dispersion - answer✔✔everything but weakest bond polar and non polar - answer✔✔hydrophilic and hydrophobic polar would be found on the outer surface of the cell because they can touch water omosis - answer✔✔from low to high...wont stop til concentration is equal hypertonic hypotonic - answer✔✔high concentration -shrink low concentration -swell reaction yield - answer✔✔(Actual Yield/Theoretical Yield) x 100% Keq>>>>1 - answer✔✔more PRODUCT Keq<<<<<1 - answer✔✔more REACTANTS Q>K - answer✔✔PRODUCTS so shift left to get more react ants Q<K - answer✔✔REACTANTS shift RIGHT to get more products compeitive inhibitor - answer✔✔Vmax SAME kM changes binds at enzymes active site non-competitive inhibitor - answer✔✔vmax changes kM SAME binds anywhere but activ site i believe pKa ( -) - answer✔✔REACTANTS pKa (+) - answer✔✔PRODUCTA pH<pKa - answer✔✔more acid than base PROTNATED
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