Exam 1
Exam 2
Exam 3
Oxidation-Reduction
Random Facts
100

Which TWO of the following will form a homogeneous solution when combined?

1) CH3OH and CH3CH2CH2CH2CH3

2) CH3CH2OH and H2O

3) CCl4 and H2O

4) CCl4 and Br2

2, 4

100

Is the following statement true or false?

Catalysts with species all in different phases are called homogeneous catalysts.

False; heterogeneous catalysts

100
Which ONE of the following statements is FALSE?


I) A Bronsted-Lowry acid is a proton donor, and a Bronsted-Lowry base is a proton acceptor.

II) An Arrhenius acid produces protons in solution, and an Arrhenius base produces electrons in solution.

III) A Lewis acid accepts an electron-pair, while a Lewis base donates an electron pair.

II

100
In Cl2 + 2e- -> 2Cl-, Cl is oxidized or reduced?
Reduced
100

Huron, Ontario, Michigan, Erie, Superior

What are the five Great Lakes?

200
Is the following statement true or false?

The cohesive forces between water molecules are weaker than the adhesive forces of water molecules to glass, which leads to water showing a convex meniscus.

FALSE; concave meniscus

200

When Q > K, the reaction shifts to the _; consuming _ and forming _ until equilibrium is achieved.

left; products; reactants
200

Calculate the pH of a 0.15 M NaOCl solution given that the Ka of HOCl = 3.50 x 10-8. 


pH = 10.3

200
Spontaneous electrochemical reactions take place in what kind of cell?

Voltaic cell

200
When We Fall Asleep, Where Do We Go?

What is the name of Billie Eilish's debut album?

300

Methanol has a normal boiling point of 64.6 degrees Celsius and a heat of vaporization of 35.2 kJ/mol. What is the vapor pressure of methanol at 10 degrees Celsius in torr?

R = 8.314 J/mol*K

*Hint: What equation will you use to solve this problem?*


67.6 torr

300

For the reaction aA -> products, [A]0 = 8.0 M, and the first and second half-lives are 25 and 50 minutes respectively.

What order is this reaction?

Second-order
300

Calculate the molar solubility of cobalt(II) hydroxide in a buffer solution with a pH of 11.00.

Ksp = 2.5 x 10-16

2.5 x 10-10 M

300
Which of the following statements is false?

I) Fluorine has an oxidation state of -1.

II) Group 7A nonmetals have oxidation states of -1.

III) Oxygen has an oxidation state of -2.

IV) Group 6A nonmetals have oxidation states of -3.

IV
300

Butterflies use this body part to taste.

What is their feet?

400
A zinc nitrate solution is 20.0% zinc nitrate by mass and has a density of 1.02 g/mL. What is its concentration in molality?

1.32 m

400

Is the following statement true or false?

A first-order reaction has a slope of -k; is a graph of time versus the natural log of the concentration at a certain time; and a half-life equation of t1/2 = 0.693/k.

True
400
Calculate the pH of a buffer that is 0.450 M NH3 and 0.350 M NH4Cl. 

The Kb for NH3 is 1.8 x 10-5. 

 

9.36

400

BONUS! 

BONUS! 

400

Potatoes were first cultivated in this South American country over 7,000 years ago. 

What is Peru?

500
Calculate the quantity of heat in kJ that is released converting 18.0 g of water vapor initially at 120 degrees Celsius to ice at 10 degrees Celsius. 


c(ice) = 2.09 J/g*C, c(water) = 4.184 J/g*C, c(steam) = 2.01 J/g*C, H(vaporization) of water = 40.7 kJ/mol, H(fusion) of water = 6.02 kJ/mol

7.5 kJ

500

For 2A(g) <-> B(g) + 3C(g),

You start with 0.90 M reactant A. At equilibrium, [B]eq = 0.15 M. Calculate Kc.

Kc = 0.038

500

You are titrating 100.0 mL of a 0.200 M benzoic acid solution with a 0.400 M KOH solution.

The Ka for benzoic acid is 6.3 x 10-5. 

What is the pH at the equivalence point?

pH = 8.65

500

For the electrochemical cell, which of the following is false?

Mg(s) | Mg2+(aq) || Al3+ | Al(s)

I) The anode reaction uses Mg(s) as the reducing agent.

II) Electrons flow from the anode to the cathode.

III) The oxidizing agent is Al(s).

IV) The anode compartment is where Mg(s) is converted to Mg2+(aq).

V) Oxidation occurs at the cathode.

V

500

This large country is the world's largest producer of bananas.

What is India?
M
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