Module 4
Which of the following species will have BOTH LDF and Dipole-Dipole Interaction?
A)HCl B)BCl3 C)Br2 D)CF4 E)CO2
What is A?
Which of the following aqueous solutions has the highest boiling point? Kb for water is 0.52C/m.
A) 0.3m potassium chloride
B) 0.25m hydrofluoric acid
C) 0.2m sodium sulfate
D) 0.2m aluminum nitrate
E) Cannot be determined
What is D?
What is the units for k in this rate law? What is the most likely reason for B not being in the rate law?
A+B-->C
rate= k [A]^2
What is M^-1s^-1 and what is because B is likely 0th order?
What is the half time of an equation in years if k for the equation is 2 x 10^-8 s^-1?
What is 1.1 years?
Who sings "Pink Pony Club?"
Who is Chappell Roan?
Can Acetone Hydrogen bond to itself? Why? How about to water?
What is acetone cannot hydrogen bond to itself but can hydrogen bond to water?
Emma is preparing a solution in her chemistry lab. She dissolves 35.0 g of sucrose (C12H22O11) in 200.0 g of water. She knows that the vapor pressure of pure water at 25 C is 23.8 mmHg.
Question: What is the vapor pressure of the water above Emma’s solution?
What is 23.58 mmHg?
What is the rate expression for the combustion of propane? If the AVERAGE RATE of formation of water is 0.3 m/s, what is the OVERALL RATE and rate for ALL OTHER SPECIES?
What is
rate=-1/1 x delta[C3H8]/deltat =-1/5 x delta[O2]/deltat=1/4 x delta[H20]/deltat= 1/3 x delta[CO2]/deltat
rate = 0.075
propane= -0.075
oxygen= -0.375
carbon dioxide= 0.225
If a first order reaction takes 45 seconds to become 10% complete, how long will it take for that same reaction to become 68% complete?
What is 486 seconds?
What is Dr. Becvar's first name?
Who is James?
Krypton has a higher melting point than argon because of its:
A) krypton bonding. B) ionic bonds. C) stronger dispersion forces. D) greater ionization energy. E) permanent dipole moment.
What is C?
The boiling point of pure water is 100.0 C, and its Kb = 0.512 C kg per mol.
A solution is prepared by dissolving 200 g of Ca(NO3)2 in 1000 g of water. What's the new boiling point?
What is 101.87?
exp A B Rate
1 0.038 0.060 1.4 x 10^-5
2 0.076 0.060 2.8 x 10^-5
3 0.076 0.030 1.4 x 10^-5
What is the rate Law?
What is
Rate=k[A]^1[B]^1
What is 0.45M?
When are my office hours?
What is Friday's at 1:30-2:30?
The vapor pressure of molecule A at 12.5C is 40 mmHg find its vapor pressure at 46C
Hvap = 37kJ/mol
what is 205 mmHg?
A 20.0 % by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/mL at 20°C. What is the molarity of this solution?
What is 2.27M?
exp A B Rate
1 0.010 0.020 0.020
2 0.015 0.020 0.030
3 0.030 0.010 0.015
What is the rate law?
What is
Rate=k[A]^1[B]^2 ?
The Reaction X + 2Y --> 3Z is first order overall. If we start with 0.30M X and 0.60M Y, what will the graph look like? The Half time for this reaction is 5 seconds.
Show on board
Can you name everyone in this workshop?
Who are Elijah, Eli, Cassandra, Sam, Erin, Jose, Ximena, Mariana, Alan, Ailani, Craig, and Ricky, Michael?
Sketch a reasonable phase diagram for substance Q with triple point at 40 torr and – 130 oC, normal freezing point of - 100 oC, and normal boiling point of - 50 oC. a. Label the axes. b. Give reasonable numerical values along the axes for your diagram. c. Draw curves showing stable regions in the diagram. d. Label (identify) those stable regions. Identify the points on your phase diagram for the data given. Use the space: make the diagram big enough.
Show on board
A solution has a molality of 2.5 m of sodium sulfate in water. The solution’s density is 1.20 g/mL. What is the solution's molarity?
What is 2.2 M?
exp A B Rate
1 0.10 0.10 2.0 × 10⁻³
2 0.20 0.10 8.0 × 10⁻³
3 0.10 0.20 4.0 × 10⁻³
What is the rate if I use 0.16 M A and 0.45 M B? What is the unit for K?
What is k=2M^-2s^-1 and rate is 2.3 × 10^-2
The reaction taking place in a gas reactor is: X(g) + 2 Y(g) → 2 Z(g).
Draw reasonable sketches for the progress of this reaction showing curves for [X] and [Z] versus time based on the data below.
X starts at 2M Y starts at 1M.
Draw
Only 2 teams in Texas have won the college national championship in men's basketball. Name 1 of those teams. Extra 100 points if you get both.
What are the Baylor Bears and UTEP Miners?