Chapter 15: Equilibria of Other Reactions

Question 1

solubility product constant

Answer 1

equilibrium expression for the dissolution of a solid compound
level at which solute dissolves in a solution

Question 2

solubility

Answer 2

mass (g) of a minimally soluble solid that dissolves to give a liter of saturated solution

Question 3

molar solubility

Answer 3

amount (moles) of a minimally soluble solid that dissolves to give a liter of saturated solution
equal to X - multiple of ion concentration

Question 4

precipitation

Answer 4

if Qsp < Ksp = no precipitate
if Qsp>Ksp = precipitate

Question 5

selective precipitation

Answer 5

method for separating ions from solution by precipitating the first one, then the other ion by adding a counter ion with which each ion of interest will react
the ion that forms the least soluble compound with the counter ion will precipitate first

Question 6

common ion effect

Answer 6

decrease of a minimally soluble ionic compound upon addition of an ion that participates in the equilibrium

Question 7

basic salts in weak acids

Answer 7

the solubility of minimally soluble salts of weak acids increases with a decrease in pH
H+ will interact with the basic anion, so equilibrium of the salt will shift right

Question 8

coordinate covalent bond

Answer 8

both electrons in a bond are donated by one compound

Question 9

lewis acid

Answer 9

electron pair acceptor
ex: Ag+

Question 10

lewis base

Answer 10

electron pair donor
ex: ligands

Question 11

complex ion

Answer 11

forms from a transition metal cation and lewis bases bonded through coordinate covalent bonds

Question 12

lewis acid-base adduct

Question 13

ligands

Answer 13

lewis bases

Question 14

formation constant

Answer 14

describes the equilibrium of the formation of a complex ion

Question 15

dissociation constant

Answer 15

equilibrium of the dissociation of a complex ion
reciprocal of the formation constant

Question 16

coupled equilibria