Mastering Stoichiometry Conversions and Practice Problems

Which conversion factor is used when converting from grams to moles?

• Balanced equation

• Avogadro's number

• Molar mass

• Mole ratio

When do you use Avogadro's number in stoichiometry?

• When dealing with atoms, molecules, particles, or formula units

• When converting moles to grams

• When balancing equations

• When converting grams to moles

What is the first step in solving the hydrogen peroxide problem?

• Use Avogadro's number

• Convert grams of hydrogen peroxide to moles of hydrogen peroxide

• Balance the equation

• Convert grams of water to moles of water

What is the molar mass of water used in the hydrogen peroxide problem?

• 2 grams

• 91.83 grams

• 48.64 grams

• 18.02 grams

What is the final mass of hydrogen peroxide calculated in the problem?

• 91.83 grams

• 2 grams

• 48.64 grams

• 18.02 grams

What is the chemical formula for carbon dioxide?

• CO

• H2O2

• H2O

• CO2

What keyword indicates the use of Avogadro's number in the carbon dioxide problem?

• Grams

• Moles

• Molecules

• Balanced

What is the first conversion factor used in the carbon dioxide problem?

• Molar mass of carbon monoxide

• Molar mass of carbon dioxide

• Avogadro's number

• Mole ratio

What is the final number of molecules of carbon dioxide calculated in the problem?

• 3.74 x 10^24

• 2.00 x 10^24

• 1.00 x 10^24

• 4.00 x 10^24

What is the purpose of using a mole to mole ratio in stoichiometry problems?

• To convert grams to moles

• To balance the equation

• To change the compound

• To use Avogadro's number