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Bronsted Lowry Definitions
Defining acids and bases in Bronsted Lowry terms with worked examples and a five step method for predicting the outcomes of Bronsted Lowry reactions.
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brons ted lowry definitionsacids are compounds that donate a Ht to water to produce tbotiaq) (Ht donors )
bases are compounds that accept a Ht from water to produce Otliaq) (Ht acceptors )
5A tbsoylaq) 1-+1+1-12011] ⇒
Hzotlaq) t
1-1804 Tag)
( A CB CB
H+ CA
+
WA 1-120113
-
Hzpoylaq t = 1-130 lag) Ha Poy lag]
+
)
CA CB CA CB
SB Ba 101-112 lag) → BaTaq, + 201-1Taq, not affected
by Bb definitions
acids of acids bases
WB conjugate weak are all weak
"
"
of STRONG ACIDS bases
conjugate bases do not qualify as
-
and should be considered neutral ( cloy Hsoyi Ng)
-
I , Br , Ci
-
-
.
,
ex)
identify compounds as either a WA or WB ? write its rxn Ñ Water
Tag)
⇒
Ntlytlaq) 1-12011) Ntlzlaq) 1-130 Weak acid
+ +
Ntlzlaq) +
thou) ⇒ OH Taq, t
Ntyt weak base
HS 1-120 a) ⇒
iaq) t
Has caq) weak base
-
+ OH
lag)
1-125
lagi t 1-120111 ⇐
Hsiaq)
+
1-130 Faq) Weak acid
ionic substances that produce WA or WB
ex) does sodium cyanide produce a WA or WB ? (weak base)
NacNlaq)
Nantlaq) G¥iaq)
⇒ ( Niaq) t
thou ⇒ HCN +
Akagi
→ t
lag,
ex) does sodium iodide act as an acid , base , or neutral substance ?
Na Icaq) →
Natiaqlt Iiaq) ⇒ 1-12011) Icaq) (neutral substance)
+
amphiprotic ions some ions act as both a WA or WB
:
1-1503-199) HPOYTags 1-1001600 Tag) preference based ka/Kb
-
, HaPoy lags , Hcozlaqj , , have a on
Not amphiprotic lit's acid ; conj base of SA base )
Hsoyiaq, is an
isnt a
-
.
five step method for predicting Bronsted Lowry reactions
present lions atoms molecules) dissociate or ionize
1. list all entities . , as
necessary
2. identify ÷ label all compounds as acid , base or neutral
( base)
identify SA and SB
higher SA lower
stronger
=
3.
=
,
Ht
¥ isolate SA and SB and create a separate equation
showing the
transfer of a
directly
between the two entities
S .
predict equilibrium position (acid
higher than base =
product favored , base
higher
-_
reactant
KCH}600
Nttylllaq)
t
Ntlyt than
Tag} -131006¥
a Kt "
-
CH 3100 NH"
Ntlzlaq)
+
Ctb COOH cap
SA AIB SB
reactant favored
metal oxides are basic
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