Chapter 4 - Stoichiometry

Question 1

What information do balanced chemical equations provide?

Answer 1

• The reactants/reagents
• The products
• The physical states
• The number of molecules or atoms
• The moles (reactant atoms) / moles (product atoms)
• The grams of the reactants / products

Question 2

What is stoichiometry?

Answer 2

Calculating quantities of reactants and products in a chemical reaction
- Stoichiometry is based on the Law of Conservation of Matter

Question 3

What can the amount of another substance in a chemical reaction be determined by?

Answer 3

It can be determined from the amount of just one substance

Question 4

What is theoretical yield?

Answer 4

Calculated - the maximum amount of product that can form during a reaction

Question 5

What is actual yield?

Answer 5

Observed - the amount of product physically isolated

Question 6

How do you solve for percent yield

Answer 6

Percent yield = actual yield / theoretical yield x 100%