Matter as Solutions, Acids and Bases

Concentration, dilution, and describing acids and bases both qualitatively and on the pH scale.

11 questions, free, marked as you go with a worked explanation on every one.

What this covers

0.50 mol of sodium chloride is dissolved to make 2.0 L of solution. What is the concentration?
50.0 mL of 2.0 mol/L solution is diluted to a final volume of 250.0 mL. What is the new concentration?
How many moles of solute are in 500.0 mL of a 0.25 mol/L solution?
A solution has a hydrogen ion concentration of 1.0 × 10⁻³ mol/L. What is its pH?
A solution has a pH of 9. What is its pOH?
According to Arrhenius, what defines an acid in water?
A strong acid is diluted with a large volume of water. What happens to its pH?
Which properties are typical of basic solutions? Select all that apply.
What are the products when hydrochloric acid neutralises sodium hydroxide?
Why does salt water conduct electricity while sugar water does not?
Use the table. Which solution is the most basic?