Chapter 14 - Molarity and Dilutions

solution

any homogenous mixture of substances

aqueous solution

a solution including water

what is the main solvent in aqueous solutions?

water

solute

present at lower concentrations

solvent

present at higher concentrations, dissolves the solute

solubility

how well a solute dissolves a solvent

colloid

a solution where particles can be seen

suspension

a solution that settles over time

how do you find the concentration of a substance?

mols/v

molarity (M)

the unit of concentration, = 1mol/1L, can be thought of as a ratio

dilutions

lowers the concentration of a substance in a solution

what changes in a solution when diluted?

the volume increaases, but the number of mols stays the same

formula to find dilusion

M₁V₁ = M₂V₂

V₂

the total volume of a solution