13.2-13.3 Flashcards
the bonds between a cation and anion are…
STRONG, require high input of energy to break bonds = ↑ melting point
water molecules can strongly solvate __ and ___
cations and anions
anions
(-) ion
cation
(+) ion
anions interact w/ the __ side of water molecules
(+) side = H side
cations interact w/ the __ side of water molecules
(-) side = O side
strong acids release __ when dissolved in water
H+ (proton)
strong bases are also called
alkali
strong base release __ when dissolved in water
OH-
Neutralization reaction
strong base neutralizes strong acid
Autoionization reaction
strong acid neutralizes strong base
aqueous reactions are __ bc…
rapid bc water molecules are in constant motion and has the property that bonds can be broken/formed simultaneously
what determines the extent of reaction?
equilibrium constant
pH + pOH = 14 bc…
auto ionization requires equilibrium
K =
[products] / [reactant]
in pure water the only source of H+ and OH- is
autoionization (pure water molecules)
pH of pure water =
7
pH < 7 =
acidic
pH > 7 =
basic
what is the only natural form of pure water?
water vapor @ start of hydrologic cycle
raindrops are not pure water bc they contain…
particles (nitrates/sulfates)
rain has a __ pH bc
lower pH bc its @ equilibrium with atmospheric constituents
strong acids ___
transfer complete proton
Ka
(acidity constant)- equilibrium constant for acid dissociation
