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Ch 16/17/18 cheat sheet - reaction rates & energy of reactions

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This is a cheat sheet I made for Chem 2 at the University of Florida. It covers material from chapters 16, 17, and 18 about reaction rates, energy of reactions, half-life, etc. This material is included on exam 1 and the final exam

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[-**] Half Life
·



Rxn Rate Energy of uxns
·
·




# 693) /In =
- concentration
1
0
TDHrXn Ea(frod)-Eacrevs]
= = .

2
must account :

Solig for coefficients order
S
Temperature 4 -> ·

CDHENDO HAH EXO
t12 ↑ ↓
[ [A]m[B]n]
3 when K
Energy ↑ Rate =
Ea/fwd)
·




↳ surface area ↑
+
(vev) are inverses
~
·


product [] always increases
Treactants , I ·


Activation Energy
constant
Reactant [J always decreases
↓ TK :
Ae FaIRT]tmp (k)



ratefrequency
3
-




1st order DOUBLES E
·




Product =


2nd Order QUADROPLES
·




overall run order energy
Oth Order NO CHANGE
·




final
-


i
-




·

Molecularity is based on of restants
-
=( Tz
-
↑ Initial




negas) product-
Equilibrium
[k =Proce
Partial Pressure Ca/Balsr/C / Br/
·


, * Neutral :
n(gas) reactant
1/ NOz I ClOy
[Kp
-
Ea(tw() Ealrev/
kc(RT) Angas ]
=

=
: 0 0021
.




-k 1
·

K) 1/Q - PROD
* AcidIC : ASOy /HCOg-
=




Q use pressures like concentrations
K at K <
1/Q7 REACT
·

=



any other equilibrium
Alf a question gives a concentration , assume ICE CHART
point
·



Q/17 only Include (9) (99)
·

Pressure :
adding/removing a product/reactant
equation but only temp affects K
-




can shift
1) Balance equation
& ADDING heat to an ENDO rn INCREASES K
2) rid of (s)/(l)


(i)
↳ ADDING heat to an EXO rxn DECREASES K
coefficients become exponents

-
If
find Q from

reversed
[prod]/Creact]
the
& In Dr I
multiplied multiplier
>
If


multiply all Ke kc(overall)
·

=




ACIDS/Proton DONORS Strong ACICS Strong Bases "b" Percent Dissociation
· · ·
·




I J
BASES/Proton ACCEPTORS HzS HNO3 LiOH 3 (sOH
CHAJinit[HA] diss
·


↳ >
[HA] as
·



diss
* CB has 7 less H 1 -HI HC1 3 NaOH 3 (a(OH)z <100
more
neg
:
&
CHAJin't ·


smaller Ka / lower diss
* CA has 7 more H 1 less
3) HBr DHClOy 3 KOH 3 Sr(OH)2
neg
+


3
"So 1 Brought
o RbOlt Ba(OH)2 * WB + SA-ACIDIC
Reaction favors WA/WB clean clothes
"

- -




Initial concent .
* SB + WA-BASIC
·
Autolonization of water pH scale of JB/SA * SB + SA- NEUTRAL

[kw
-




[OH]]
I
-





CH30 ] :
DH 14 pOt
= = -




* WB + WAT DEPENDS
L V
&) IE-14
POH =

-10g [OH-] pH -10g [H30 + ]
=
Lewis acds
accept e-pair (H)
·




·



[A30 ] +
> [OH] ACIDIC OH = 10
-

POH HzOt =
18-PH LeWIS bases dinate e pair (-)
[H30 ] +
< [OH-] BASIC 18 pka
·




ka
-log(ka)
-




pKa
= =

-

[H30"] [OH] NEUTRAL M
·

=


same for Kb

17bxka =
kw

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Uploaded on
April 10, 2026
Number of pages
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Written in
2024/2025
Type
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Professor(s)
Steven harris
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