Module 4
The weakest and strongest IMFs.
What are London Dispersion Forces and Hydrogen Bonds?
Water dissolves _____ substances.
What is polar?
The unit for RATE is.
What is M/s?
State the half-life equation for a 1st order reaction.
What is t1/2=ln2/k
The third planet from the sun.
What is Earth?
The Clausius-Clayperon Equation.
What is ln(P2/P1)=-Hvap/R x ((1/T2)-(1/T1))?
Solubility of gases ____ with increasing gas pressure.
What is increases?
If the units of k are L mol⁻¹ s⁻¹ , what is the order of the reaction?
What is second order?
If temperature increases, then the rate constant____
The smallest country in the world.
What is the Vatican City?
The point where the gas, liquid, and solid phases coexist?
What is the triple point?
Calculate the molality of a sulfuric acid solution containing 24.4 g of sulfuric acid in 198 g of water.
What is 1.26m?
At the given rate law
rate=k[A][B]^3
If the concentration of B is doubled, and the concentration of A is unchanged, the rate will...
What is increase by a factor of 8?
Problem 13.25
What is the half-life of a compound if 75 percent of a given sample of the compound decomposes in 60 minutes? Assume first-order kinetics.
What is 30 minutes?
The seven wonders of the ancient world?
What are the Great Pyramid of Giza, the Hanging Gardens of Babylon, the Statue of Zeus at Olympia, the Temple of Artemis at Ephesus, the Mausoleum at Halicarnassus, the Colossus of Rhodes, and the Lighthouse of Alexandria?
A stronger IMF leads to ______ vapor pressure.
What is lower?
Calculate the vapor pressure of a solution made by dissolving 218 g of glucose (C6H12O6) in 460 mL of water at 30°C. What is the vapor-pressure lowering?
The vapor pressure of pure water at 30°C is 31.82mmHg. Assume the density of the solution is 1.00 g/mL.
What is 1.4mmHg?
Problem 12.7
Consider the reaction
2NO(g) + O2(g) ----> 2NO2(g)
Suppose that at a particular moment during the reaction, nitric oxide (NO) is reacting at the rate of 0.066 M/s.
(a) At what rate is NO2 being formed?
(b) At what rate is molecular oxygen reacting?
What is....
(a) 0.066 M/s
(b) −0.033 M/s
Problem 37.39
For the reaction
NO(g) + O3(g) ---> NO2(g) + O2(g)
The frequency factor A is 8.7x10^12 s^-1 and the activation energy is 63 kJ/mol. What is the rate constant and the units for the reaction at 75°C?
What is 3x10^3 s^-1?
The year that the first iPhone was released.
What is 2007?
If volume is doubled, the vapor pressure will _____
What is not change?
Calculate the percent by mass of the solute in each of the following aqueous solutions:
(a) 5.50 g of NaBr in 78.2 g of solution,
(b) 31.0 g of KCl in 152 g of water,
(c) 4.5 g of toluene in 29 g of benzene
What is...
(a) 7.03%
(b) 16.9%
(c) 13%
Consider the reaction
A + B --> products
From the following data obtained at a certain temperature, determine the order of the reaction and calculate the rate constant:
[A] (M) [B] (M) Rate (M/s)
1.50. 1.50 3.20x10^-1
1.50 2.50 3.20x10^-1
3.00 1.50 6.40x10^-1
What is first order, k = 0.213 s^−1?
Problem 13.27
The rate constant for the second-order reaction
2NOBr(g) ---> 2NO(g) + Br2(g)
is 0.80/Ms at 10°C.
(a) Starting with a concentration of 0.086 M, calculate the concentration of NOBr after 22 s.
(b) Calculate the half-lives when [NOBr]0 =0.072 M and [NOBr]0 = 0.054 M.
What is...
(a) 0.034M
(b) 17 seconds and 3.6 seconds
The largest toy distributor in the world.
What is McDonalds?