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Chem Exam '12
People of Chemistry on my Exam and Constants
| Question | Answer |
|---|---|
| Lewis | atoms want to get stable electron configuration of a noble gas (octet rule) Lewis dot structure |
| Boyle's | PV=PV |
| Gibbs' | said if a reaction loses/gives off energy, it will be spontaneous but the reaction can give off energy in 2 forms: heat or work. gibbs free energy tells you whether or not a reaction will be spontaneous. |
| Bohr model | most recent model said there are only certain allowable distances that electrons can orbit and can't orbit in between |
| Henry's Law | as gas pressure increases, solubility goes up |
| Gay Lussac's principle | P/T=P/T |
| Celsius | (F-32)*(5/9)= °C |
| Fahrenheit | °F = (9/5 x °C) + 32 |
| Charles's | V/T=V/T |
| Kelvin | Celcius + 273= K |
| Torricelli | invented the barometer a unit of pressure, one mm of mercury 1 Torr= 160mmHg |
| Le Chatelier's | if you put stress on a system that's in equilibrium ir will adjust to relieve the stress |
| Hund's rule | when filling a sublevel, one electron goes into each orbital b4 a second goes into any. |
| Pauli exclusion principle | an atomic orbital can hold at most 2 electrons |
| Van Der Waal | 1.dispersion forces 2.dipole interractions 3. hydrogen bonds (strongest) |
| Hess's` | the enthalpy change for a reaction that is carried out in a series of steps is equal to the sum of the enthalpy changes for the individual steps |
| K(sub a) | acid equilibrium constant |
| K(sub w) | ion product constant [H+] times [OH-] = 1.0 * 10^-14 |
| K(sub b) | boiling point elevation constant |
Created by:
paulina.knoblock
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