Collision Theory
Equilibrium+ Constants
Equilibrium + Constants Part II
Polarity and IMF Review
Polyatomic Ion Review
100
What three conditions must be satisfied for a chemical reaction to occur?
Collision, Orientation, and Energy
100
Reactants form products in the _____ reaction
Products form reactants in the FORWARD reaction
100
Products form reactants in the _____ reaction
Products form reactants in the REVERSE reaction
100
Which of the following bonds are polar?
H-C
O-O
N-H
F-C
F-O
N-H
F-C
F-O
100
What is the name of C2H3O2-?
Acetate
200
The name for the minimum amount of energy required to break the bonds between atoms of the reactants is what?
The activation energy (Ea)
200
In the following image, which of the following molecules is/are the product(s)
?
H2CO3
200
When does this reaction reach equillibrium?
14 minutes (accept 13-15)
200
Is this a polar or a non-polar molecule? If so, where is the negative dipole?
O = 3.5, H = 2.1, C = 2.5
Yes! The negative dipole is located on the O
200
What is the formula for hydroxide?
OH-
300
How dos a catalyst increase the rate of a chemical reaction?
It decrease the activation energy (Ea)
300
Write the equilibrium expression for the following chemical equation:
ClNO2(g) + NO(g) --> <-- NO2(g) + ClNO(g)
Kc = ([NO2][ClNO])/([ClNO2][NO])
300
Write the expression equilibrium expression for the following chemical equation:
Ca(OH)2 (s) + 2 H+(aq) --><-- Ca2+(aq) + 2 H2O(l)
Kc = [Ca2+]/[H+]2
300
Will CH4 dissolve into H2O?
No! (likes dissolves like)
300
What is the name of SO32-
Sulfate
400
Explain what would happen to the rate of a chemical reaction if I reduced the temperature of reactants and WHY this would be the case
The rate of reaction would slow as I would be decreasing the kinetic energy of the molecules meaning they would move slower, collide less often, and collide with less energy.
400
Consider the following chemical equation:
Al(OH)3(s) --><-- Al3+(aq) + 3OH-(aq)
What is the Kc for this reaction if, at equilibrium and -25 C, I have a concentration of 0.132 M of Al3+ and 0.342 M of OH- ?
Kc = 0.00528
400
Oh no!
Lose 400 points!
400
What intermolecular forces would be present in a cup of HNO2.
Dispersion forces
Dipole-Dipole
Hydrogen Bonding
Ion-Dipole
Covalent Bonding
Ionic Bonding
N = 3.0, O= 3.5, H = 2.1
Dispersion forces
Dipole-Dipole
Hydrogen Bonding
400
What is the formula for carbonate?
CO32-
500
On the following graph, identify where the products, the reactants, the activation energy, and the heat of the reaction are located. Then, determine if this is exothermic or endothermic
Exothermic
500
Consider the following reaction:
2SO2(g) + O2(g) --><-- 2SO3
800 K was maintained until the system reached equilibrium. The equilibrium mixture contained:
5.0 x 10-2 M SO3, 3.5 x 10-3 M O2, and 3.0 x 10-3 M SO2.
What is Keq for this reaction?
Keq = 7.9 x 104
500
Consider the following reaction:
H2(g) + I2(g) --><-- 2 HI(g)
740 K was maintained until the system reached equilibrium. The equilibrium mixture contained:
1.37 x 10-2 M HI, 6.47 x 10-3 M H2, and 5.94 x 10-4 M I2.
What is Keq for this reaction?
Keq = 48.8
500
Order the following from lowest to highest melting points.
CH3CH3
MgSO4
N2H4
KCl
C2H5F
Lowest
CH3CH3
C2H5F
N2H4
KCl
MgSO4
Highest
500
What is the name of NO3-
Nitrate