Large Stoichiometry Practice Challenge

What is the primary focus of the stoichiometry problem discussed in the video?

• Limiting and excess reagents, and percent yield

• Atomic structure

• Reaction rates

• Chemical bonding

Which of the following is not a focus of the stoichiometry problem discussed?

• Limiting reagents

• Percent yield

• Reaction mechanisms

• Excess reagents

Which gas is involved in the chemical reaction discussed?

• Hydrogen

• Nitrogen

• Carbon dioxide

• Oxygen

What is the molar mass of zinc used in the calculations?

• 65.38 grams/mol

• 161.44 grams/mol

• 24.7 grams/mol

• 6.0 grams/mol

What is the molar mass of zinc sulfate calculated in the video?

• 65.38 grams/mol

• 161.44 grams/mol

• 24.7 grams/mol

• 6.0 grams/mol

What volume of sulfuric acid is used in the reaction?

• 6.0 liters

• 0.025 liters

• 25 milliliters

• 1 liter

Which reagent is the limiting reagent in the reaction?

• Zinc sulfate

• Hydrogen gas

• Sulfuric acid

• Zinc

What is the purpose of converting milliliters of sulfuric acid to liters in the stoichiometry calculations?

• To calculate the density

• To use in the conversion factor

• To determine the molarity

• To measure the gas volume

How much zinc is left in excess after the reaction?

• 0.2 grams

• 9.8 grams

• 10 grams

• 24.2 grams

What is the percent yield of the reaction if 23.7 grams of zinc sulfate were collected?

• 100%

• 65.38%

• 97.9%

• 24.2%