Chemistry Solubility Quiz

Study Notes

Solubility Concepts

Solubility indicates a substance's ability to dissolve in a solvent; "soluble" means it can dissolve, while "insoluble" means it cannot.
According to solubility rules, sulfate ions (SO4^2-) are soluble with calcium (Ca), confirming CaSO4 is soluble.

Definition of Solubility

Inquiring about the solubility of a compound like Ca(OH)2(s) concerns its capacity to dissolve in water.

Saturated Solutions

A saturated solution contains the maximum amount of dissolved solid/ions possible.
A saturated solution is characterized by the equilibrium condition where the rate of precipitation equals the rate of dissolving.

Solubility Product Constant (Ksp)

The solubility product constant, denoted as Ksp, represents the equilibrium constant for solubility reactions.
Ksp can vary with temperature changes; typically, increased temperature decreases gas solubility, affecting Ksp.

Calculation of Solubility

Solubility is derived from the value of x in an ICE (Initial, Change, Equilibrium) table related to the Ksp of the reaction.

Solubility Values for Calcium Hydroxide

The solubility of Ca(OH)2 in water with a Ksp of 5.0 x 10^-6 is 0.0108 M, roughly equivalent to 0.8 g/L.

Copper Bromide Equilibrium Calculations

For CuBr(s) with a Ksp of 6.27 x 10^-9, the concentration of Cu+ in equilibrium is 7.92 x 10^-5 M.
In a saturated CuBr(s) solution with 0.10 M NaBr present, the solubility drops to 6.27 x 10^-8 M.

Description

Test your knowledge on solubility concepts in chemistry with this quiz. You'll answer questions about the solubility of various compounds and what it means to have a saturated solution. Perfect for reinforcing your understanding of solubility rules and definitions.