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56 Cards in this Set
- Front
- Back
Arrhenius Equation |
k = Ae^(-Ea/RT) |
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K usually _______ with Temperature |
Increased |
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What is the slope in lnk=-Ea/RT + lnA in lnk vs. 1/T |
slope = -Ea/R |
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concentration equation |
c = n/v |
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Calculate order of reaction |
Rate1/Rate2=(K1A1^nB1^m)/(K2A2^nB2^m) |
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Iodine clock |
2 S2O3 2- + I2 —> 2I- + S4O6 2- |
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What reaction occurs after all the thiosulfate in the iodine clock reaction has been reacted? |
I2 + I- —> I3 - |
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What does the linear triiodide molecule reaction with and what colour does it turn? |
Reacts with starch and turns blue |
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What does the delta t of colourless —> indicate ? |
the time that it takes to react all of the S2O3 2- |
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T= infinity |
K = A |
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rate = k’[dye]^q q=0? q=1? q=2? |
0, half life and zero order reaction vary linearly with [dye] 1, half life and first order reaction are independent of [dye] 2, second order reaction and half lives are inversely proportional to [dye] |
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Zero order |
Back (Definition) |
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First order |
Back (Definition) |
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Second Order |
Back (Definition) |
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Half life, zero order |
t1/2 = [A]o/2K |
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Half life, first order |
t1/2 = ln2/k |
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Half life, second order |
t1/2 = 1/k[A]o |
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What layer is the I2 in ? |
Mineral Oil layer |
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What layer is the I2 in ? |
Mineral Oil layer |
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Is the mineral oil layer above or below the aqueous layer? |
Above |
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Distribution coefficient |
equilibrium of one species in between two phases |
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pH = ? |
-log[H3O+] |
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pOH = ? |
-log[OH-] |
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[H3O+] = ? |
10^-pH |
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[OH-] = ? |
10^-pOH |
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HA + H2O —> ? |
H3O+ + A- |
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pH = pKa at ? |
1/2 equivalence volume |
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[A-(at equivalence point)] = ? |
n HA initial / V HA initial + V NaOH added |
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Equivalence Point |
moles of tire ant equals moles of reactant initially in the sample |
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pH at equivalence point = ? |
pH of A- in solution at same concentration |
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%Dissociation = ? |
[H3O+]eq/[HA]initial x 100% |
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Buffer capacity |
the amount of acid or bae that can be added with only a minimal change in the pH of the solution |
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pH = ? |
pKa + log ([Base]/[Acid]) |
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n acid neutralized by antacid = ? |
n H added to antacid - n NaOH used in back titration |
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pKa = ? |
-log Ka |
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Ka = ? |
10^-pKa |
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Oxidation number |
electrons lost |
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coordination number |
how many ligands are bonded |
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monodentate ligand |
H2O |
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cheating agent |
EDTA |
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C heat capacity ? |
the amount of energy or “heat” needed to change the temperature of a substance per degree |
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c |
specific heat capacity |
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Cm |
molar heat capacity |
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delta H |
enthalpy |
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Exothermic |
Enthalpy leaving the system |
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Endothermic |
Enthalpy entering the system |
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delta Go = ? |
-RTlnK |
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delta Go = ? |
delta Ho - T delta So |
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delta H neutralization = ? |
-C water x (Tf - Ti) water |
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Reducing agent |
species that is oxidized by losing electrons |
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Oxidizing agent |
species that gains electrons and is reduced |
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What appears in the reactants of a spontaneous reaction? |
The better reducing agent and better oxidizing agent appear in the reactants |
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E = ? |
Eo - 0.0592/n logQ |
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Ecell = ? |
E cathode - E anode |
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E cell = ? |
E red - E ox |
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Eo cell = ? |
(Eoc - 0.0592/nc logQcathode) - (Eoa - 0.0593/na logQanode) |