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Easter Chemistry
recap
| Question | Answer |
|---|---|
| Initial rate of reaction | change in concentration of a reactant/product per unit at the start of a reaction |
| rate determining step | slowest step in a multi step reaction |
| Kc is greater than 1 | product favoured |
| Kc is less than 1 | reactant favoured |
| If the forward reaction is endothermic what happens to the Kc value | Kc increases equilibrium shifts to the right |
| If the forward reaction is exothermic what happens to the Kc value | Kc decreases equilibrium shifts to the left |
| Lewis Acid | species that is an electron acceptor |
| Lewis Base | species that is an electron donor |
| Buffer Solution | mixture that minimizes pH changes when small amounts of acid or base are added. |
| Equivalence point | point of a titration where the volume one solution has reacted exactly with the volume of a second soltuion. |
| End point | point in the titration at which there are equal concentrations of the weak acid the conjugate base pair |
| Why cant lattic enthalpy be determined directly | impossible to form one mole of solid compound from its gaseous ions. |
| Catalyst | provides an alternative pathway with a lower activation energy for the reaction |
| High Kstab value | more stable the complex more easily the complex forms |
Created by:
07blandforderin