Question

Which statement correctly describes the relationship between reactant and yield?
The actual yield is calculated from the amount of the excess reactant present.
The actual yield is calculated from the amount of the limiting reactant present.
The theoretical yield is calculated from the amount of the excess reactant present.
The theoretical yield is calculated from the amount of the limiting reactant present.

Answer 1

"The theoretical yield is calculated from the amount of the limiting reactant present."

Explanation: The limiting reactant determines how much product can form, so theoretical yield is computed from its available amount. Actual yield is the experimentally obtained amount of product (not calculated from the excess reactant).