Which of the following would NOT be studied within the topic of stoichiometry?

• A. Calculating the amount of product formed from a given amount of reactant
• B. Studying the energy changes during a chemical reaction
• C. Determining the limiting reactant in a chemical reaction
• D. Balancing chemical equations to find mole ratios

Answer: (B)

Verified step by step guidance

1. Understand that stoichiometry is the branch of chemistry that deals with the quantitative relationships between reactants and products in a chemical reaction.
2. Recognize that stoichiometry involves calculations such as determining the amount of product formed from a given amount of reactant, finding the limiting reactant, and balancing chemical equations to establish mole ratios.
3. Identify that studying energy changes during a chemical reaction falls under thermochemistry, which is a different area of chemistry focused on heat and energy transfer, not stoichiometric calculations.
4. Compare each option to the definition of stoichiometry to determine which one does not fit within its scope.
5. Conclude that 'Studying the energy changes during a chemical reaction' is not part of stoichiometry because it deals with energy rather than quantitative mole relationships.