Mole and Stoich
States of Matter
Gas Laws
Solutions
Acids/Bases
100
How many particles are in one mole?
6.022x1023
100
What is plasma?
A highly ionized state of matter with a high temperature.
100
When the temperature of a gas in a closed container is doubled while the pressure is held constant. The volume of the gas…
Is doubled.
100
What are ligands?
Molecules that are bonded to the central atom
100
What is a neutral species?
According to Arrhenius, a species that does not generate an excess of H30+ or OH-1 when added to water.
200
How many moles of H2O are involved in this reaction: 2 C2H6 + 7 O2 –> 6 H2O + 4 CO2
6
200
Kinetic energy is directly proportional to…
Temperature.
200
Vials of CCl4, NH3, and C6H6 gases are released simultaneously across the room. Which would you smell first?
NH3
200
What is the symbol for equilibrium constant?
Keq
200
What is a strong acid?
According to Arrhenius, a species that completely dissociates to generate H30+ molecules when added to water.
300
What is a limiting reagent in a chemical reaction?
The one that runs out.
300
The process of converting a gas to a solid without passing through the liquid phase is called:
Deposition.
300
The graph of a direct mathematical relationship has the shape of a…
Straight line.
300
How can one calculate a Keq?
Keq= [C]c[D]d ---------- [A]a[B]b
300
What is a weak base?
According to Arrhenius, a species that partially dissociates to generate OH-1 molecules when added to water.
400
What does it mean to have 105% yield when running a chemical reaction?
You messed up because you can’t use more than 100%.
400
What is Standard Temperature and Pressure?
0 degrees Celsius and 1 atm or 101.3 kPa or 760 mmHg
400
What is the volume and temperature formula?
V1/T1=V2/T2
400
If liquids are miscible, what can you do with them?
You can mix them together without layers being formed in the liquid.
400
What is the conjugate acid in this reaction: HSO4^-1 + H2O → SO4^-2 + H3O^+1
H3O^+1
500
Which of the following are conserved during a chemical reaction: Moles, Atoms, or Mass? Why?
Mass because it cannot be created or destroyed, and Atoms because they contain mass.
500
A barometer reads the air pressure at 810 mmHg. What is the pressure in atmospheres?
810mmHg x 1 atm/760mmHg= 1.07 atm
500
A flash contains only 0.10 moles of nitrogen gas, 0.30 moles of helium gas, and 0.40 moles of oxygen gas. The total pressure in the flask is 1.00 atm. What is the partial pressure of the OXYGEN gas?
0.10+0.30+0.40= 0.80 moles → 0.4 moles O2/0.8 moles= Partial Pressure of O2= 0.5 atm
500
Find the value of the Q at the start of the reaction if the initial concentrations are [N2]= 0.5 M, [H2]=0.75 M, and [NH3] = 1.2 M. (Use the formula N2(g) + 3H2(g) → 2NH3(g)
Q= [NH3]2/[N2]x[H2]3 → (1.2)2/(0.5)(0.75)3= 1.44/0.2109375 → Q=6.83
500
What is autoionization?
A process by which atoms or molecules spontaneously emit one of the shell electrons.
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