Formulas and Equations
Mnemonics and Concepts
Ochem & Lewis Structures
Acids/Bases
Misc.
100

Calculate the molality of a solution containing 14.3 g of NaCl in 42.2 g of water.

5.8 m

100

Which of these species would you expect to have the lowest standard entropy (S°)?

H2 (g)        I2 (s)

Br2 (l)        F2 (g)       

I2 (s)

100

In the Lewis structure of the iodate ion, IO 3 –, where every atom satisfies the octet rule, the formal charge on the central iodine atom is:

  1. +1

  2. -1

  3. +2

  4. 0

+2

100

  1. For which type of titration will the pH be neutral at the equivalence point?

  2. Strong acid vs. strong base.

  3. Weak acid vs. strong base.

  4. Strong acid vs. weak base.

  5. All of the above

  6. None of the above

Strong Acid Vs. Strong Base

100

What is the national animal of Scotland?

The unicorn

200

At 700 K, the reaction 2SO 2(g) + O 2(g) ⬄ 2SO 3(g) has the equilibrium constant K c = 4.3E6, and the following concentrations are present: [SO2] = 0.010 M; [SO3] = 10. M; [O2] = 0.010 M. Which of the following is true based on the above?

Qc > Kc, the reaction proceeds from right to left to reach equilibrium

200

Which one of the following substances is expected to have the highest boiling point?

I2

Br2

F2

Cl2

I2

200

  1. Use VSEPR theory to predict the molecular geometry of the PCl3 molecule.

Trigonal Pyramidal

200

Which one of these is not a strong acid?

H2SO4

HCl

HClO3

HNO3

HF

HF

200

What is the largest living species of lizard?

Komodo Dragon

300

Phosgene, COCl2, a poisonous gas, decomposes according to the equation COCl2(g) ⬄ CO(g) + Cl2(g). Calculate Kp for this reaction if Kc = 0.083 at 900ºC.

8.0

300

 Which response lists all the following pairs that are miscible liquids?
Pair #1: octane (C8H18) and water
Pair #2: acetic acid (CH3COOH) and water
Pair #3: octane (C8H18) and carbon tetrachloride(CCl4)

2, 3

300

What is the name of the molecule CH3CH2CH(CH3)CH2CH2CH2CH3?

3-methylheptane

300

Which of the following is not a conjugate acid-base pair?

  1. H2O and H3O+

  2. H2PO4– and HPO42–

  3. H3PO4 and HPO42–

  4. H3PO4 and H2PO4 –

  5. HPO42– and PO43–

H3PO4 and H3PO42-

(Do not differ by a single proton)

300

Who was the President of the United States during the American Civil War?

Abraham Lincoln

400

Calculate the H + ion concentration in a 8.8 × 10 –4 M Ca(OH) 2 solution.

5.7 × 10 –12 M

400

The overall reaction for an electrochemical cell is:    Zn + HgO 🡪 ZnO + Hg

Identify the half-reaction taking place at the anode:

Zn--> Zn^2+  +2e-

400

The polar molecules among the following are:

    i) CO2    ii) H2O   iii) BeCl2    iv) BF3    v) CCl4 

Only ii)

400

State is the effective pH range for a sodium acetate/acetic acid buffer: (For CH3COOH, Ka = 1.8 x 10–5)

  1. 3.7 to 5.7

  2. 2.7 to 6.7

  3. All pH values below 7

  4. Will not act as a buffer at any pH

3.7 to 5.7
400

Which two Texas Teams won the National Basketball Championship?

1. UTEP

2. Baylor

500

An electrochemical cell based on the following reaction has a standard cell voltage (E°cell) of 0.48 V:

Sn(s) + Cu2+(aq) → Sn2+(aq) + Cu(s)
What is the standard reduction potential of tin(II)? (E°(Cu2+/Cu) = 0.34 V)

-0.14 V

500

Which one of the following is most likely to be a covalent compound?

  1. KF

  2. SF4

  3. Al2O3

  4. CaCl2

  5. CaSO4

SF4

500

The formula CH3CH2CH2CH=CH2 represents

  1. An Alkene

  2. An alkane

  3. An aromatic compound

  4. A cycloalkane

  5. An alkyne

An alkene

500

Find the pH of a .20 M aqueous hydrocyanic acid solution. For HCN, 

Ka= 4.9x10^-10

pH=5.0

500

What are two things you can never eat for breakfast?

Lunch and Dinner

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