Nuclear/Organic
Draw propanol
CH3-CH2-CH2-OH
Which statement best describes general equilibrium?
[A] Equilibrium is reached when the reaction stops.
[B] There is only one set of equilibrium concentrations that equals the Kc value.
[C] At equilibrium, the rate of the forward reaction is the same as the rate of the reverse reaction.
[D] At equilibrium, the total concentration of products equals the total concentration of reactants.
[C] At equilibrium, the rate of the forward reaction is the same as the rate of the reverse reaction.
Which of the following would not from a buffer?
[A] H2CO3/HCO31-
[B] H+/OH-
[C] HF/F-
[D]NH41+/NH3
[B] H+/OH-
Write the rate law for the following reaction given that it is 2nd order with respect to A and 1st order with respect to B.
A2+ 2B --> 2AB
rate = k[A]2[B]
Electrons always flow from the ______ to the ______
Anode, Cathode
What is the missing particle in the balanced nuclear equation?
3215P ---> 3216S + ____
[A] 0-1Beta
[B] 0+1Beta
[C] 00Gamma
[D] 42Alpha
3215P ---> 3216S + 0-1Beta
[A] 0-1Beta
Consider this reaction carried out at constant volume.
2SO2 (g)+ O2 (g) <--> 2SO3 (g)
The concentration of O2(g) at equilibrium increases if:
(A) SO2 is added to the system.
(B) SO3 is added to the system.
(C) the temperature of the system is lowered.
(D) an inert gas is added to the system.
2SO2 (g)+ O2 (g) <--> 2SO3 (g)
(B) SO3 is added to the system.
What equations would you use to get a pH if you had the concentration of [OH-]?
pOH = -log ([OH-])
14.00 = pH + pOH
The decomposition of hydrogen peroxide in the presence of iodide ion is believed to occur via this mechanism.
H2O2(aq) + I-(aq) ---> H20(l) + IO-(aq)
H202(aq) + IO-(aq) ---> H2O(l) + O2(g) + I-(aq)
In this mechanism, I-(aq) is...
[A] a catalyst. [B] a reactant in the overall reaction.
[C] the activated complex. [D] a product of the overall reaction.
[A] a catalyst.
Where does oxidation occur?
At the Anode.
Cobalt-60 undergoes beta decay. What is the balanced nuclear reaction for this process?
[A]6027Co --> 01beta + 6026Fe
[B]6027Co --> 0-1beta + 6028Fe
[C]6027Co --> 42alpha + 5625Mn
[C]6027Co + 0-1e --> 6026Fe
[B]6027Co --> 0-1beta + 6028Fe
When comparing Q and Ksp of a saturated solution, _______.
[A] Q < Ksp
[B] Q = Ksp
[C] Q > Ksp
[D] Q = Ksp =0
[B] Q = Ksp
What is the pH of a buffer made from 0.050M HC2H3O2 and 0.075 M NaC2H3O2? (Ka of HC2H3O2 is 1.8*10^-5)
pH = -log (1.8*10^-5) + log (0.075M/0.050M)
4.92 = 4.74 +0.18
pH = 4.92 SLIDE 6
The experimental data from a certain reaction gives these three graphs. What is the most likely order
for this reaction?
SLIDE 9
[B] First Order
Calculate the standard electrode potential:
SLIDE 11
BONUS: Write balanced reaction or draw the galvanic cell.
[B] 0.46 V
What is the name of the following structure:
SLIDE 2
2,4,4-trimethyl-2-hexene
What is the solubility of Ca3(PO4)2 in a solution containing 0.50 M Ca(NO3)2?
Ksp = 2.0*10^-29
S = 6.3*10^-15 M
SLIDE 4
Which graph best represents the titration of ammonia with hydrochloric acid?
SLIDE 7
[A]
The activity of a radioisotope is 3000 counts per minute at one time and 2736 counts per minute 48 hours later. What is the half-life, in hours, of the radioisotope?
[A] 831 hr [B] 521 hr [C] 361 hr [D] 1.44 hr
[C] 361 hr
According to the Nernst equation, when Ecell = 0 then...
(A) Q = K
(B) K = 1
(C) Delta Go = 0
(D) Eocell = 0
(A) Q = K
Calculate the Mass Defect of the isotope oxygen-16 (816O) that has a measured mass of 15.994915 amu (BOUNS: what equation would you use to calculate the binding energy)
Mass of a proton = 1.007276 amu
Mass of a neutron = 1.008665 amu
Mass Defect (delta m) = 0.132 amu
SLIDE 3
Ethylamine (C2H5NH3) is a weak Bonsted-Lowry base. If it has an initial molarity of 0.024 M and a Kb of 5.6 x 10-4, calculate its pH at equilibrium.
pH = 11.53
SLIDE 5
What is the [H+] concentration of a solution made by titrating 35.00 mL of 0.660 M C6H5NH2 with 40.00 mL of 0.420 M HCl (Kb for C6H5NH2=4.6*10^-7)
[H+] = 5.9*10^-8 M
SLIDE 8
What is the rate law?
SLIDE 10
[B] rate = k[Cl2]
Draw and label the following Galvanic Cell:
Zn(s)|Zn^2+|| Cu^2+| Cu (s)
SLIDE 12