16.1-16.4
16.5-16.7
17.1-17.3
17.4-17.6
18.1-18.5
100
Raising the temperature of a reaction increases the reaction rate by increasing the _____ and ______ of the collisions.
What is frequency and energy
100
What is a substance that increases the rate without being consumed?
What is a catalyst
100
An equilibrium constant with a value of K > 1 means:
What is there are more products than reactants at equilibrium
100
If a system at equilibrium is disturbed by a change in concentration, the system will shift to ____ a substance that is added and ____ a substance that has been removed.
What is use up, produce
100
The quantity -log[H3O+] is called the ___ of a solution.
What is pH
200
What is an elementary step?
What is each step that makes up a reaction mechanism.
200
What is a reaction intermediate?
What is A substance formed and used up during the reaction.
200
Does Q for the formation of 1 mol of NH3 from H2 and N2 differ from Q for the formation of NH3 from H2 and 1 mol of N2?
What is Yes; Q1^2 = Q2
200
Predict the effect of decreasing the container volume on the amounts of each reactant and product in the following reactions: H2(g) + Cl2(g) <--> 2HCl(g) 2H2(g) + O2(g) <--> 2H2O(l)
What is 1. no effect, 2. Less reactants more products
200
What is the pH of 0.065 M HNO3? Is it acidic, neutral, or basic?
What is 1.19, acidic
300
Give the individual reaction orders for all substances and the overall reaction order from the following rate law: Rate= k[O3]^2/[O2]
What is O3:2, O2:-1, Overall order:1
300
True or False: The activation energy is the minimum energy needed for colliding particles to react.
What is True
300
Write the equilibrium constant, K, for 2 SO2 (g) + O2 (g) → 2 SO3 (g)
What is K = [SO3]^2 / [SO2]^2 [O2]
300
Predict the effect of increasing the temperature on the amounts of products in the following reactions: CO(g) + 2H2(g) -><- CH3OH(g) deltaHrnx= -90.7 kJ C(s) + H2O(g) -><- CO(g) + H2(g) deltaHrnx= 131 kJ 2NO2(g) -><- 2NO(g) + O2(g) (endothermic) 2C(s) + O2(g) -><- 2CO(g) (exothermic)
What is 1. decrease, 2. increase, 3. increase, 4. decrease
300
What are [H3O+], [OH-], and pOH in a solution with a pH of 2.97?
What is 1.07e-3, 9.33e-10, 11.03
400
Give the overall reaction order than corresponds to a rate constant with each of the following units: 1. mol/L x s 2. yr^-1 3. (mol/L)^1/2s^-1
What is 1: zero order. 2: first order. 3: half order
400
True or False: If a mechanism begins with a fast step, only those reactants involved in the fast step appear in the overall rate law.
What is False, slow step
400
For the reaction H2 (g) + Br2 (g) <--> 2 HBr (g), K = 4.0 x 10^-2. For the reaction 2 HBr (g) <--> H2 (g) + Br2 (g), what it K?
What is 2.5 x 10^1
400
Ammonium hydrogen sulfide decomposes according to the following reaction, for which Kp = 0.11 at 250°C: If 55.0 g of NH4HS(s) is placed in a sealed 5.0-L container, what is the partial pressure of NH3(g) at equilibrium?
What is 0.33 atm
400
How many moles of H3O+ or OH- must you add per liter of a HA solution to adjust its pH from 9.84 to 9.05?
What is 7.5e-10 moles of H3O+
500
For the simple decompision reaction: AB->A+B rate=k[AB]^2 and k=0.20 L/mol x s. If the initial concentration is 1.50 M. What is the concentration after 15.3 s?
What is 0.27 M
500
Give the individual reaction orders for all substances and the overall reaction order from the following rate law: Rate=k[BrO3-][Br-][H+]^2
What is First order: BrO3- and Br- Second order: H+ Zero Order: None ​Overall: Fourth order
500
The following reaction is preformed and the corresponding Kp is calculated. What is Kc for the reaction? CO (g) + Cl2 (g) <--> COCl2 (g) Kp = 3.9 x 10^-2 at 1000. K
What is Kc = 3.2019
500
The first step in HNO3 production is the catalyzed oxidation of NH3. When 0.0150 mol of NH3(g) and 0.0150 mol of O2(g) are placed in a 1.00-L container at a certain temperature, the N2 concentration at equilibrium is 1.96×10−3 M. Calculate Kc.
What is 6.02e-6
500
A 0.245 mol sample of HX is dissolved in enough H2O to form 685.0 mL of solution. If the pH of the solution is 4.50, what is the Ka of HX?
What is 2.80e-9
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