Question

Which molecules would dissolve in water based on polarity? Select the 3 that apply.

Answer 1

Answer: Option (D) and (E) are the correct answers.

Explanation:

Water is a polar solvent and it is known that like dissolves like. Hence, polar solutes easily dissolve in water.

For example, alcohols, amines etc are polar solvents.

Whereas hydrocarbons like methane, ethane, benzene etc have covalent bonding in their atoms. Hence, they are non-polar in nature due to which they are unable to dissolve in water or any other polar solvent.

Thus, we can conclude that out of the given options CH3CH2 CH2 CH2 CH2 CH2OH and C5H10O5 will dissolve in water based on polarity.

Answer 2

water interacts with polar substances such as -OH groups but not with non polar substance such as CH3. Based on polarity, D and E have high polarity and dissolve in water.