Question

How does percent recovery relate to the overall purity of the original mixture?

mass impure benzoic acid= 2.54g

mass pure benzoid acid= 1.07g

percent recovery=42.13%

Answer 1

Percent recovery rate will increase if overall purity of mixture is increased because now we have more recoverable substance per unit waste. Let's take an example we have 2.54 pure substance in each of two waste matter of 10 and 15 gram sample.here overall purity of 10 gm sample is more than that of 15 gram. Now let's say we can recover 1.07 of pure matter from 15 gram sample than we will recover more than 1.07 gm pure substance from 10 gm sample using same recovery technique so here recovery rate is more in 10 gm sample.