CLAS 1140 Study Guide - Midterm Guide: Hydrolysis, Phenolphthalein, Single Displacement Reaction
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Large k means reaction proceeds nearly to completion (products favored) and vice versa. [(cid:396)ea(cid:272)ta(cid:374)ts] a(cid:374)d [p(cid:396)odu(cid:272)ts] does(cid:374)"t (cid:272)ha(cid:374)ge: rate forward rxn = rate reverse rxn, g=0, reach minimum in free energy, equilibrium constant (k): = [(cid:3043)(cid:3042)(cid:3031)(cid:3048)(cid:3030)(cid:3047)](cid:3289) [(cid:3032)(cid:3028)(cid:3030)(cid:3047)(cid:3028)(cid:3041)(cid:3047)](cid:3288: solving equilibrium problems, construct ice tables and solve for k. Two underlying principles: conservation of matter: # of atoms cannot change, equilibrium constant expression, chemical equilibrium example, 2nocl (g) 2no (g) + cl2, 2. 0 mol nocl is placed in a 4. 0 l flask. [nocl]=(cid:2870) (cid:3040)(cid:3042)(cid:3039)4 (cid:3013) =(cid:882). (cid:887: (cid:882). (cid:887) (cid:884)=(cid:882). (cid:886)8 x=0. 01. [no]=(cid:884)(cid:4666)(cid:882). (cid:882)(cid:883)(cid:4667) =(cid:882). (cid:882)(cid:884: =(cid:2868). (cid:2868)(cid:2870)(cid:3118) (cid:2868). (cid:2868)(cid:2869) (cid:2868). 4(cid:2876)(cid:3118) =(cid:2778). (cid:2778)(cid:2777) (cid:2782) If rxn is multiplied by some coefficient n: = This means that there are ions in the solution: acid: ionizes in water to produce h+ ions, base: ionizes in water to produce oh- ions. The hydronium ion: h+ ions are very reactive. A of a strong acid contains no ha molecules: strong acids to know:
