Chapter 16 - Aqueous Solutions

Question 1

What is a precipitation reaction?

Answer 1

Occurs if ions in solution combine yo form a new compound that is insoluble in water

• two solutions of compounds are mixed and a solid product is formed

Question 2

What is a precipitate?

Answer 2

An insoluble compound formed from a precipitation reaction

• solid product formed

Eg. Hydrates ions ( Cl and Ag+ surrounded by water molecules)
—> strong attraction between Ag+ and Cl- ions
—-> ionic lattice AgCl forms

Question 3

What is concentration?

Answer 3

Concentration describes the relative amount of solute and solvent present in the solution

• quantity if solute dissolved in solvent

Question 4

What is a concentrated solution?

Answer 4

A solution in which the ratio of solute and solvent is high is said to be concentrated

Question 5

What is a dilute solution?

Answer 5

A solution in which the ratio of solute to solvent is low is said to be a dilute solution

Question 6

What is molarity

Answer 6

The number of moles of solute per litre of solution

Mol-1 / L or M

Question 7

What is dilution?

Answer 7

The process of adding more solvent to a solution is dilution