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Chemistry
Chem topic 9
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Sophie Koutalakis
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Cards (39)
what trade places in double displacement?
cations
trade places
where are cations in written formula?
they are written
first
acid is a proton_
donor
base is a proton _
receiver
acids _ pH
lower
bases _ pH
raise
are there more or less H+ in acids?
more
are there more or less H+ in bases?
less
what is in bases more than H+?
OH
what is the pH equation?
pH = -log[H+(mol/L)]
what does mol/L mean?
molarity
what does H+ represent in pH equation?
concentration
(
molarity
)
what is aqueous?
chemicals
that
dissolve
in
water
what are solids?
chemicals
that
don't dissolve
in
water
solubility
if something is
soluble
or
insoluble
in
water
if everything is aqueous at the end of a reaction,
no
reaction
actually happened
in acid reactions, there with always be an _ to donate protons
H
in acid reactions, _ will always be the acid/proton donor
H
net ionic equations
show
only
the
ions
that
participate
in the reaction
spectator ions
ions that
do
not
participate
in a
reaction
total ionic equation
writing out
all
ions
you should write the _ for net ionic equations
states
when ions are soluble in water they are
pulled
apart
water is more dense as a
liquid
water is a liquid at
room
temperature
why is water a liquid at room temp?
water is
polar
covalent
water has a _ boiling point
high
water can _ a lot of molecules
dissolve
why can water dissolve a lot of molecules?
it is very
polar
, nearly
ionic
,
stabilizes
ions
what is IM for 0.0-0.5?
non
polar
covalent
what is IM for 0.51-1.6?
polar
covalent
what is IM for more than 2.0?
ionic
1.6-2.0 gap is _ if it involves a metal
ionic
1.6-2.0 gap is _ if it involves only non metals
polar
covalent
what is the equation for pOH?
pOH = -log [OH (mol/L)]
how do you find pH from pOH?
subtract
pOH
from
14
you have to do _ to find pH
stoicheometry
why do you have to do stoicheometry to find pH?
have to know
ratio
of
H+
pH is calculated with,
H+ ions