Chem 8-3 Solubility Basics

It helps us understand how substances interact in solutions.

It determines the color of a compound.

It is only relevant for gases.

It is unrelated to chemical reactions.

A substance that does not dissolve in water and forms a precipitate.

A substance that dissolves completely in water.

A substance that evaporates quickly.

A substance that reacts with water to form a gas.

NaCl

AgCl

CO2

C6H12O6

They attract water molecules directly.

They always dissolve in water.

Water forms hydration shells around them.

They never dissolve in water.

They stick better to each other than to water.

They react with water to form a precipitate.

They form hydration shells easily.

They are always gases.

NaCl

NaNO3

NH3

KBr

As temperature increases, ammonia's solubility in water increases.

As temperature increases, ammonia's solubility in water decreases.

Ammonia's solubility in water is unaffected by temperature.

Ammonia becomes a solid at higher temperatures.

Glucose

Acetic acid

KBr

NaCl

Potassium chloride will dissolve, calcium sulfate will precipitate

Calcium chloride will dissolve, potassium sulfate will precipitate

Both products will dissolve

Both products will precipitate

K+

SO4^2-

Ca^2+

Cl-

SO4^2- (aq) + Ca^2+ (aq) -> CaSO4 (s)

K2SO4 (aq) + CaCl2 (aq) -> 2 KCl (aq) + CaSO4 (s)

2 K^+ (aq) + SO4^2- (aq) + Ca^2+ (aq) + 2 Cl^- (aq) -> 2 K^+ (aq) + 2 Cl^- (aq) + CaSO4 (s)

Ag^+ (aq) + Cl^- (aq) -> AgCl (s)

They remain unchanged and settle at the bottom.

They are surrounded by solvent molecules forming hydration shells.

They evaporate into the air.

They combine to form larger particles.