Thermo and Equilibrium
This increases for all spontaneous processes
What is the entropy of the Universe
This is the conjugate base of H2O
OH-
In a galvanic cell, this is where reduction occurs
The cathode
This is the molecularity of the following elementary step: NO2 +CO ⟶ NO + CO2
What is bimolecular
This type of molecule donates electrons
What is a lewis base
This decreases for all spontaneous processes
What is Gibb's Free Energy
This is the Kb of CN- (Ka of HCN is 4.5 x 10-6)
What is 0.000000002222222 (or 2.2 x 10-9)
This is the sign of cell potential for a spontaneous reaction
positive
This chemical species is produced in one step and consumed in another
What is an intermediate
This is the coordination number of cobalt in: [Co(NH3)4]2+
What is 4
The exothermic reaction A + B --> C is spontaneous at these types of temperatures
What are low temperatures
A buffer will have higher buffer capacity if the concentration is high and the desired pH is similar to this
What is the pKa
This is the half reaction at the anode of the following cell:
Zn(s)│Zn2+(aq)║Sn4+(aq),Sn2+(aq)│Pt(s)
Zn (s) --> Zn2+ + 2e-
These are the units for a rate constant of a
2nd order reaction.What are M-1 s-1
This is the oxidation state of nickel in: [NiCl4]2-
What is 2+
If 2S2O --> O2 + 2S2 K = 2.3, then the reaction
4S2O --> 2O2 + 4S2 has this equilibrium constant
What is 2.32 or 5.29
A solution of NaF will have this general pH (high/low/neutral)
What is high pH
This is the species being oxidized in the following reaction:
2Fe(s) + 3Cu2+ --> 3Cu(s) + 2Fe3+(aq)
What is iron
This plot of ln[H2O2] vs. time for the decomposition of H2O2 indicates that the order of the reaction is this order.
What is first order
A low spin complex has this kind of ligand
What is a strong field ligand
When nitrogen gas boils, DeltaH = 5.7 kJ/mol and Delta S = 74.7 J/mol, meaning that the process becomes spontaneous at this temperature.
What is ~76 K
This is the term used to describe a species that can act as an acid or a base.
What is amphiprotic
This is the number of electrons being transferred in the following redox reaction:
2Fe(s) + 3Cu2+ --> 3Cu(s) + 2Fe3+(aq)
What is six
Increasing the temperature of a reaction will do this to the reaction's activation energy
What is absolutely nothing!
This is the number of electrons in the d orbitals of Co3+
What is 6 electrons
If A + B <--> C K = 0.12
and [A]=1.2 M [B]=0.75 and [C]=2.8, the reaction will proceed in this direction to re-establish equilibrium.
What is the reverse direction.
K<Q (3.1)
This is the pH of a 0.25 M HNO2 (Ka= 7.6 x 10-8)
What is 3.86
This is the cell potential for the following reaction at 25oC is this:
Co(s)+Fe2+(aq,1.94M)⟶Co2+(aq, 0.15M)+Fe(s)
Eo = -0.17
What is -0.14 V
Plotting lnk versus this variable allows you to determine the activation energy of a reaction.
What is 1/T
This is the number of unpaired electrons in [CrF3(H2O)3]
What is three electrons