Honors Spring Final 2021

Last updated about 5 years ago

30 questions

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2

3

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3

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5

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3

2

3

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Library

Honors Spring Final 2021

Last updated about 5 years ago

30 questions

4

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?

4

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.

2

3

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

3

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

2

3

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

2

5

2

3

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

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

2

Draggable item		Corresponding Item

2

Balancing the equation; make sure you show your work.

2

3

What is wrong with this set up?

2

3

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

3

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

2

3

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

4

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?

2

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.

3

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?

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?

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.

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.

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

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

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

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

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.

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

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

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.

Draggable item		Corresponding Item
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

Balancing the equation; make sure you show your work.

When heat is added to boiling water, the temperature of the boiling water

increases.

stays the same.

decreases.

What is wrong with this set up?

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

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

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

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

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

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?

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

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.

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

Honors Spring Final 2021

Honors Spring Final 2021

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?

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.

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

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

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

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

Balancing the equation; make sure you show your work.

What is wrong with this set up?

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

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

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

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.

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?

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?

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.

The pressure is recorded as 738 mmHg. Convert this measurement to atmospheres (atm).

Le Chatelier's Principle states that if a chemical system at equilibrium is stressed,

When the system A + B ⇌ C + D is at equilibrium,

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

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

Calcualte the pH of a solution that has a [3.0 x 10-6] of HSO4

Strong acids are closest to...

If you have 1.5 moles of copper (Cu), how many grams is that?

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

2.7 x 1025 molecules of MnO equals how many moles?

Match the chemical reactions with their respective type

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.

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

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?

What is the melting point of the substance?

Match the following masses with the number of moles.

Balancing the equation; make sure you show your work.

When heat is added to boiling water, the temperature of the boiling water

What is wrong with this set up?

Endothermic reactions result in: (Select all that apply)

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

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

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?

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

Which of the following is true for temperature?

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.

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?

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.

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

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

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

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

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

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

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.

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

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

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

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

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

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