AP BIOLOGY

Detailed explanation-1: -The rule of thumb is that “like dissolves like". Polar/ionic solvents dissolve polar/ionic solutes and non-polar solvents dissolve non-polar solutes. For example, water is a polar solvent and it will dissolve salts and other polar molecules, but not non-polar molecules like oil.

Detailed explanation-2: -Like Dissolves Like. A simple way to predict which compounds will dissolve in other compounds is the phrase “like dissolves like". What this means is that polar compounds dissolve polar compounds, nonpolar compounds dissolve nonpolar compounds, but polar and nonpolar do not dissolve in each other.

Detailed explanation-3: -"Like dissolves like “ means if any substance is polar then polar and ionic substances will be dissolved in it. Example : HCl in water. If the solvent is non-polar then the non-polar substances only can be dissolved in it. Example : hexane in benzene.

Detailed explanation-4: -Polar solvents will dissolve polar and ionic solutes because of the attraction of the opposite charges on the solvent and solute particles. Non-polar solvents will only dissolve non-polar solutes because they cannot attract the dipoles or the ions.

Detailed explanation-5: -Substances with similar polarities tend to be soluble in one another ("like dissolves like"). Nonpolar substances are generally more soluble in nonpolar solvents, while polar and ionic substances are generally more soluble in polar solvents.