Question

1. **a student is working with liquid acetone (boiling point = 56°c, soluble in water) and water (boiling point = 100°c) in the lab and he accidently dropped sand in the mixture. he needs your help to figure out the best separation method to separate the sand, water and collect the acetone. draw a flow chart with proper separation techniques to separate the mixture.

1. when a mixture of water, sand, and salt is filtered, what passes through the paper?

a. water, only
b. water and salt, only
c. water and sand, only
d. water, sand, and salt

1. *the laboratory apparatus shown is used to separate components of a mixture based on differences in

Explanation:

Question 1

First, sand is insoluble in both acetone and water. So, filtration can be used to separate sand from the liquid mixture (acetone - water). Then, since acetone and water have different boiling points (56°C vs 100°C), distillation can be used to separate acetone from water.

Filtration is a process that separates insoluble solids from liquids. Sand is insoluble in water, so it will be retained on the filter paper. Salt is soluble in water, so the salt - water solution (along with water) will pass through the filter paper.

The apparatus shown is a distillation setup. Distillation is a separation technique that works based on the differences in boiling points of the components of a mixture.

Answer:

Mixture (sand + acetone + water) $\xrightarrow{\text{Filtration}}$ Sand + (Acetone + Water) mixture $\xrightarrow{\text{Distillation}}$ Acetone + Water

Question 2