The synthesis of a certain drug requires four steps. The first three steps were relatively easy with percent yields of 97.1%, 94.3%, and 92.8%, respectively. However, the last step was very difficult, with a percent yield of 72.7%. What was the overall percent yield?

Question

Quizplus · Accepted Answer

The overall percent yield is calculated by multiplying the yields of each step together, then converting to a percentage. So, the overall yield = 0.971 * 0.943 * 0.928 * 0.727 = 0.618 (or 61.8%).

The Synthesis of a Certain Drug Requires Four Steps