E˚agle
When E is (-), find the sign of ΔG.
What is (+)?
State the relationship between ΔG and K.
What is ΔG = -RT lnK
A certain reaction’s rate quadruples when one of its reactant is doubled and doubles when the second reactant is doubled. Find the total overall order.
What is third order?
A graph is straight when the scales are ln[A] v. Time. What order is this reaction?
What is 1st order?
BF3 is a ___ (acid/base).
What is a Lewis Acid?
The Anode is an electrolytic cell does _____ and has a sign of ____.
What is Oxidation and Positive?
A reaction’s ΔH has sign (-) and ΔS sign of (+). Will current need to be supplied?
What is No? (Is this how jeopardy really supposed to work?)
A reaction: A + B <=> C with an I- catalyst speeds up the forward reaction by 2230x. What is the rate of the reverse reaction?
What is 2230x?
A graph of the reaction: N2 + 3H2 -> NH3 has a sharp rise on the concentration of H2. What does this indicate to the concentration of N2?
What is the concentration decreases?
0.150g of HA was dissolved in 100. mL solution. This was then titrated with 24.8mL of 0.100M NaOH. Find the Molar Mass of HA.
What is 60.5 g/mol ?
What is E_cell for the disproportionation of hydrogen manganate ion under acidic conditions?
Rxn: 5HMnO4- + 3H+ -> 4MnO4- + Mn2+ +4H2O
Half rxns:
MnO4- + H+ +e- -> HMnO4- E= +0.90V
MnO4- + 8H+ +5e- -> Mn2+ + 4H2O E= +1.51V
What is 0.61V?
What is the change in standard free energy at 298 K for the conversion of ozone to molecular oxygen as shown in the equation below?
2O3 -> 3O2
Half rxn:
O3 + 2H+ +2e- -> O2 + H2O E= 2.08V
O2 + 4H+ +4e- -> 2H2O E=1.23V
What is -328 kJ?
A sample containing radium-226 was measured in 1925 to have an activity of 3.74 x 10^6 disintegrations per second. The same sample, re-measured in 2025, has an activity of 3.58 x 10^6 disintegrations per second. What is the half-life of Ra-226?
What is 1600 years?
A graph has four mounds on its PE v rxn coord diagram. The tallest peak is mound #3. What does this suggest?
Which solution would be the most conductive?
1: 0.3M of 300. mL of H3PO4
2: 0.2M of 400. mL of NaH2PO4
3: 0.2M of 300.mL of Na2HPO4
4: 0.3M of 100. mL of Na3PO4
What is 0.2M of 300. mL of Na2HPO4? (solution 3)
Find the E_cell when two beakers containing 1.0M Cu2+ and 15.0 M Cu2+ concentrations are linked up together at 298K.
What is 0.0348V?
A graph of 1/T v. ln K has a slope of -4560. Find ΔH.
What is +37.9kJ?
A reaction: A + 2B -> C has two steps:
1. A+ B -> I fast
2. I + B -> C slow
Find the Rate law.
What is Rate = k[B][A]
A graph of E v. T with the equation: y=0.7887 - 0.000515x. Find ΔH and ΔS.
What is ΔH = -152kJ/mol and ΔS= -99.4J/(mol K)?
What decay does Rb-83 undergo to Kr-83? (ΔE = 0.9MeV)
What is electron capture?
A galvanic cell is constructed at 298 K with one half-cell consisting of a 10.00 g silver wire immersed in 1.00 L of a 0.100 M solution of silver nitrate and the second half-cell consisting of a 20.00 g copper plate immersed in 1.00 L of a 0.200 M solution of copper(II) sulfate.
Rxn: 2Ag+ +Cu -> Cu2+ +2Ag
The cell is discharged at a constant current of 0.150 A until the mass of the silver electrode is equal to the mass of the copper electrode. How much time does this take?
What is 12.8 hours?
Substance X boils at 1400K. If ΔS = +12J/(mol K), find ΔH.
What is stays constant?
A graph of ln(S) (molar solubility) v. 1/T of NaIO3 has the equation: y = 6.266 - 2088x.
What is the standard enthalpy of dissolution of NaIO3?
What is +34.7kJ/mol?
PCl5 + P2O5 -> ?
What is POCl3?