Log in
Sign up for FREE
arrow_back
Library

Honors Spring Final 2021

star
star
star
star
star
Last updated about 5 years ago
30 questions
4
4
2
2
2
3
3
2
2
2
3
2
5
2
3
2
2
2
2
2
3
2
3
3
2
3
4
2
2
3
Question 1
1.

A sample of argon has a volume of 5 L and a pressure of 0.92 atm. If the final temperature is 200 °C, the final volume is 5.7 L, and the final pressure is 800 mmHg, what was the inital temperature of the argon?

Question 2
2.

State whether the pressure of a gas in a sealed container increases or decreases with each of the following changes:
a) The volume changes from 250 mL to 500 mL.
b) The temperature changes from 20 °C to –80 °C.
c) The moles of gas change from 1.00 mol to 1.50 mol.

Question 3
3.

Question 4
4.

Question 5
5.

Question 6
6.

Consider the following reversible reaction. In a 3.00 liter container, the following amounts are found in equilibrium: 0.0420 mole N2, 0.516 mole H2 and 0.0357 mole NH3. Find the equilibrium constant Keq. N2 + 3H2 ⇌ 2NH3

Question 7
7.

How many moles of Ca(NO₃)₂ are there in 75 mL of 0.25 M solution?

Question 8
8.

Question 9
9.

Question 10
10.

Question 11
11.

Using the following chemical equation, how many grams of phosphorus are needed to produce 25.3 grams of diphosphorus pentaoxide?
P + O2 → P2O5

Question 12
12.

Question 13
13.

Question 14
14.

Question 15
15.

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.

2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

Question 16
16.

Question 17
17.

Question 18
18.

Draggable itemarrow_right_altCorresponding Item
arrow_right_alt
arrow_right_alt
arrow_right_alt
arrow_right_alt
Question 19
19.

Balancing the equation; make sure you show your work.

Question 20
20.

Question 21
21.

What is wrong with this set up?

Question 22
22.

Question 23
23.

Using the following chemical reaction, determine how many moles of Mg(OH)2 will be produced if you start with 12 moles of H2O.
Mg + H2O → Mg(OH)2 + H2

Question 24
24.

P4 + Cl2 → PCl3
Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCl3 is produced by the above reaction.

Question 25
25.

Question 26
26.

Identify the acid, base, conjugate acid and conjugate base for the following:
HClO4 + H2O ⇄ H3O + ClO4

Question 27
27.

Using the following reaction:
CaCO3 + SO2 + other reactants --> CaSO3 + other products (no need to balance)
In a particular experiment, 255 g of CaCO3 was exposed to 135 g of SO2 (limiting) in the presence of an excess amount of other chemicals required for the reaction. What is the theoretical yield of CaSO3? If only 198 g of CaSO3 were produced, what would be the percent yield of CaSO3 in this experiment?

Question 28
28.

Question 29
29.

A hot metal sinker of mass 68.2 grams at 99.8°C is dropped into a cup containing 125 mL of water at 22.4°C. The final temperature in the cup is 31.0°C. What is the specific heat capacity of the metal? Submit/show your work.

Question 30
30.

Consider the following heating curve for water and answer the following questions:
a. Describe as fully as you can what is happening for each section of the curve (for example, what is going on between A and B, B and C, etc.
b. What is the temperature at point B?
c. What is the temperature at point E?

The pressure is recorded as 738 mmHg. Convert this measurement to atmospheres (atm).
98.4 atm
7.3 atm
560,880 atm
0.97 atm
Le Chatelier's Principle states that if a chemical system at equilibrium is stressed,
the system will not adjust
the system will adjust to reduce the stress
the system will adjust to increase the stress
When the system A + B ⇌ C + D is at equilibrium,
the reverse reaction has stopped.
the sum of the concentrations of A and B must equal the sum of the concentrations of C and D.
neither the forward nor the reverse reaction has stopped.
the forward reaction has stopped.
both the forward and the reverse reactions have stopped.
Calcualte the pH of a solution that has a [3.0 x 10-6] of HSO4
5.5
3.1
6.8
7.9
Strong acids are closest to...
pH 7
pH 0
pH 14
If you have 1.5 moles of copper (Cu), how many grams is that?
2.5 x 10-24 g Cu
96 g Cu
0.02 g Cu
9.03 x 1023 g Cu
2.7 x 1025 molecules of MnO equals how many moles?
1.63 x 1049 mol MnO
3.80 x 1023 mol MnO
3,183.64 mol MnO
44.84 mol MnO
Match the chemical reactions with their respective type
AB + CD --> AD + CB
AB --> A + B
A + BC --> AC + B
2H2O --> 2H2 + O2
H2 + I2 --> 2HI
A + B --> AB
MgCl2 + Zn --> ZnCl2 + Mg
C6H12O6 + 6O2 --> 6CO2 + 6 H2O
CxHy + O2 --> CO2 + H2O
NaOH + HCl --> NaCl + H2O
Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion
Which of the following can be correctly said about 1.0 mole sample of Ag and 1.0 mole sample of Au? Select all that apply.
They have the same number of atoms.
They have the same mass.
The sample of Au will weigh more.
There are more atoms of Au.
The sample of Ag will weigh more.
They have the same molar mass.
There are more atoms of Ag.
On a hot day, a small, well-insulated building is significantly colder than the outside. A solid metal door leads to the outside, and a person placing their hand nearby but not touchng the door can feel warmth from the door. How does the heat from outside make it into the hand?
heat from outside is conducted through the door, then is radiated from the door to the hand
heat from outside is convected through the door from outside, then is conducted through the air to the hand
heat from outside is convected through the door, then is radiated from the door to the hand
heat from outside is radiated through the door, then is radiated from the door to the hand.
What is the melting point of the substance?
0 °C
25 °C
5 °C
15 °C
Match the following masses with the number of moles.
16.0 g of O2
1 mole
23 g of Na
2 moles
10.0 g of NaOH
0.5 moles
4.04 g of H2
0.25 moles
When heat is added to boiling water, the temperature of the boiling water
increases.
stays the same.
decreases.
Endothermic reactions result in: (Select all that apply)
the substance feeling cold
energy absorbed from the surroundings
energy given off to the surroundings
the substance feeling hot
Two metals of equal mass but different specific heat capacities are subjected to the same amount of heat. Which will undergo the smallest change in temperature?
The metal with the lower heat capacity
Both undergo the same change in temperature
The metal with the higher heat capacity
You need to know the identities of the metals
You need to know the initial temperatures of the metals
Which of the following is true for temperature?
When temperature goes down, energy goes up
Temperature is about the speed of particles in a sample
Temperature is measured in Joules
Temperature is about the movement of energy from one location to another
The higher the temperature, the higher the kinetic energy