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Exam III & Post-Exam III
Grab Bag
UIUC Trivia
100

Identify the following as compounds, atoms, or molecules? Hint: Multiple may occur.

O3

CH4

Xe

What is:

Molecule

Compound, Molecule

Atom ?

100

If we wanted to make a 1 L solution of 1.5-M NaOH, this is how many millilitres of water would we add to our 16-M NaOH stock solution?

What is 906.25 mL?

100

This is the order the following species based on atomic radius.

P, F, Cr, Fe

What is
F<P<Fe<Cr ?

100

Which of the following would change the concentration of a solution:

Spilling

Causing evaporation to occur

Adding something that will cause a precipitate to form

Adding solid solute

Adding water

What are:

Evaporation, precipitate, solid added, water added ?

100

This building on campus was once called Assembly Hall. It is home to our Basketball teams.

What is State Farm Center?

200

Which of the following has the highest mass percent C.

CO2

C2H6O2

C2H5OH

What is C2H5OH?

200

Using the reaction below, each time 65 grams of CS2 form, ______ grams of S8 were required.


S8 (s) + 4 C (s) -> 4 CS2 (l)

What is ~53.89?

200
Draw the lewis structure for HCN.

What is

H-C-=N:

-= triple bond

200

These are the spectator ions for the combination of Fe(NO3)3 & Na2CO3.

What are NO3- and Na+ ?

200

This field is located on campus. It is the most expensive cornfield in the world, the oldest experimental cornfield, and the oldest experimental field in the Western Hemisphere.

What is Morrow Plots?

300

this is the partial pressure of Ar with respect to the total If we had a rigid container with 80 grams of Ne and 80 grams of Ar.

(Answer in the format of Ar is ~ *FRACTION* of Total P)

What is 1/3?

300
This ion is the limiting reactant when we mix 100 mL of 0.2 M magnesium nitrate and 100 mL of 0.2 M potassium hydroxide.

What is hydroxide (OH-)?

300

Given the following species, which would you expect to dissolve in CH3CH2OH.

H2, SO2, HCN, HF, Br2

What are

HCN, HF, SO2 ?

300

Rank the following based on which you would expect to melt at the lowest temperature.

CH3CH2OH, NaCl, Ne, Ar

What is:

Ne, Ar, CH3CH2OH, NaCl ?

300

This is the name of the old standing structure on campus. It is a white prairie house located on the south quad that was built in 1871.

What is the Mumford Hourse?

400
This is the mass of He present in a sample at a pressure of 1520 torr, a temperature of 23 C, and a volume of 152 L.

760 torr = 1 atm

What is 50 grams?

400

To create water a synthesis reaction occurs (multiple reactants -> 1 product) between hydrogen gas and oxygen gas. After the reaction occurs we find 20 grams of water and 10 grams of oxygen gas. This was the total mass of oxygen present before the reaction.

What is 27.8 grams?

400

This neutral atom has an excited state of [Rn] 5f3 6d3.

What is U?

400

Why would we see He as having a smaller radius than Ne?

What is:

- He lower energy level => electrons closer ?

400

Between these two buildings is where the university's first president was buried.

What is Henry Dobbs (Administration Building) & Altgled (Hall)?

500

These are the assumptions used for ideal gases as opposed to real gases. There are 3, I need 2.

What are:

- Particles have no V

- Particles have no IMFs

- Particles experience perfect elastic collisions ?

500

Given we had the following chemicals, these are the names of the precipitates that would form.

Calcium Nitrate, Sodium Carbonate, Iron (III) Nitrate, Sodium Sulfate, Potassium Chloride

What are:

Iron (III) Carbonate & Calcium Sulfate ?

500

This is the molecular shape of sulfur tetrafluoride.

What is See-Saw?

500

This is the minimum volume of 0.1 M H2SO4 needed to inflate a balloon to 0.7 L at 0.9 atm and 22 *C for baking soda and sulfuric acid.

H2SO4 (aq) + 2 NaHCO3 (s) -> 2 H2O (l) + 2 CO2 (g) + Na2SO4 (aq)

What is 130 mL?

500

This building on campus has priceless floors. They are made of teak wood and contain enough that it could never be reimported.

What is the Krannert Center for the Performing Arts?