CPC Final Exam Review

The Mole

100

This numerical values is known as Avogadro's number.

What is 6.02 x 10²³

200

This is the number of grams in 0.567 moles of calcium chloride.

What is 63.0 grams?

300

This is the molar mass of Al₂(SO₄)_3.

What is 342 g/mol?

400

This is the percentage of carbon in C₅H₁₂.

What is 83.3%?

500

This is the molecular formula of a compound having a molar mass of 78 g/ mol and an empirical formula of CH.

What is C₆H₆?

Reactions

100

This is the name given to numbers that come before an element or compound in a reaction in order to balance a reaction.

What is a coefficient.

200

This law is the reason why a chemical reaction must be balanced.

What is the Law of Conservation of Mass.

300

These substances are the products in the following chemical equation:

Cu + AgNO₃ ---> Ag + Cu (NO₃)₂

What are Ag and Cu (NO₃)₂?

400

This is the coefficient that goes in front of HCL when the following equation is balanced:

FeCl₃ + H₂SO₄ ---> Fe₂(SO₄)₃ +  HCl

What is 6?

500

This is the ratio of moles of water to moles of carbon dioxide when the following reaction is balanced:

CH₄ + O_{2 --->} CO₂ + H₂ O

What is 2 mol water: 1 mole carbon dioxide?

Compounds

100

There are this many hydrogen atoms in one molecule of calcium hydroxide.

What is 2?

200

Of the following compounds, these are considered molecular:

NH₄OH

C₆H₆

carbon monoxide

lithium chloride

What are C₆H₆ and carbon monoxide.

300

This is the chemical formula for dichlorine heptoxdie.

What is Cl₂O₇?

400

This is the name for Fe(NO₃)₃.

What is iron (III) nitrate?

500

Of the following compounds, this compound would be expected to melt at the highest temperature:

NO₂

C₂H₆

carbon monoxide

lithium chloride

What is lithium chloride?

Stoichiometry

100

This is the number of grams of sulfuric acid that are needed to completely react with 13.6 g of aluminum?

2 Al(s) + 3 H₂SO₄(aq) ---> Al₂(SO₄)₃ (aq) + 3H₂(g)

What is 74 grams sulfuric acid?

200

This is the percentage yield of carbon dioxide if 6.02 grams were produced during a process that was expected to produce 8.5 grams.

What is 70.8%.

300

This is the theoretical yield of HCl if 35.0 grams of hydrogen sulfide are mixed with excess iron (III) chloride.

2FeCl₃ + 3H₂S --> 6HCl + Fe₂S₃

What is 75.1 grams of HCl?

400

This is the limiting reactant if 90.0 g if Iron (III) chloride reacts with 52.0 g of hydrogen sulfide.

2FeCl₃ + 3H₂S --> 6HCl + Fe₂S₃

What is FeCl₃?

500

This is the percentage yield of water when 0.112 grams of H₂ are reacted with excess Fe₃O₄  and 0.745 grams of water are actually produced.

Fe₃O₄ + 4H₂ ---> 3Fe + 4H₂O

What is 74.5%?

Gases

100

This is what happens to pressure as volume is decreased.

What is pressure increases?

200

This temperature is 253 Kelvin in degrees Celsius.

What is -20 degrees Celsius?

300

This is the volume of a balloon when the temperature of a 1.5 L balloon is raised from 25 degrees Celsius to 35 degrees Celsius.

What is 1.55 L?

400

This is the total pressure of a mixture of gases that contains oxygen at 100 torr, nitrogen at 150 torr, and carbon monoxide at 50 torr.

what is 200 torr?

500

This is the final temperature in degrees Celsius of a 2 liter container that started at 1.5 atm and 15 degrees Celsius that has been raised to a volume of 3 liters and a pressure of 2.5 atm.

What is 447 degrees Celsius?