Question

You have a sample of contaminated benzoic acid that weighs 2.014 g. After performing a proper recrystallization with proper drying, the mass of your purified benzoic acid is 1.611 g. What is your percent recovery rounded to the nearest tenths

Answer 1

Answer: The percent recovery of benzoic acid is 80.0 %

Step-by-step explanation:

To calculate the percent recovery of the sample, we use the equation:

`\text{Percent recovery of the sample}=\frac{\text{Mass of purified sample}}{\text{Mass of contaminated sample}}* 100`

Mass of purified sample = 1.611 g

Mass of contaminated benzoic acid = 2.014 g

Putting values in above equation, we get:

`\text{Percent recovery of the sample}=(1.611g)/(2.014g)* 100=79.99\%=80.0\%`

Hence, the percent recovery of benzoic acid is 80.0 %