Chem- A/B equilibrium Flashcards
What is the PH of unpolluted rain
5.3
What causes the PH of unpolluted rain to be slightly acidic + what’s the reaction
co2 reacting with h2o
co2 + H2o <->H2co3 +H3O
define acid deposition
the lowering of the PH of rain water below 5 that is caused by human activity
what are the greatest cause of acid rain
SOX and NOX gases
what causes the release of SOX gases (so2 + so3)
burning fossil fuels, removing sulfur from crude oil, removing H2S from gas
What causes the release of NOX gases (No + No2)
Atmospheric N2 reacting with o2 in vehicle engines or furnaces
Empirically define an acid
conductive, blue litmus turns red, rough, sour, reactive with metal, ph<7, corrosive
Empirically define a base
Conductive, red litmus turns blue, bitter, slippery, corrosive, Ph>7
Whats the bronston-Lowry acid and base definition
Acids donate a proton
bases accept a proton
What are amphiprotic substances
substances that can act as either an acid and/or a base
what’s a polyprotic acid/bas
acid= can donate more than one proton
base= can accept more than one proton
Ka=
acid ionization constant
an acid reacting with water
Kb=
base ionization constant
base reacting with water
whats the PH @ equilibrium when a SA and a SB are titrated
PH= 7
whats the PH @ equilibrium when a WA and a SB are titrated
PH>7
whats the PH @ equilibrium when a SA and a WB are titrated
PH<7
Define a buffer
A buffer is a solution that resists change in PH
