The Percentage Yield (Leaving Cert Chemistry): Flashcards

Efficiency measure: actual vs theoretical product obtained

Maximum product if reaction goes perfectly to completion

Amount of product actually obtained in the experiment

$\frac{\text{Actual}}{\text{Theoretical}} \times 100$

Actual & theoretical must be in same units

Reactions don't go all the way to completion

Competing reactions produce unwanted products

Product lost during handling, filtering, transferring

Usually <100%

80-90% considered very good

$\frac{\text{Mass}}{\text{RMM}}$

Write balanced chemical equation