Expressing the Concentrations of Solutions (Leaving Cert Chemistry): Flashcards

Substance that gets dissolved in a solution

Substance that does the dissolving in a solution

Homogeneous mixture of solute dissolved in solvent

Particles evenly distributed, uniform throughout

$\frac{\text{Mass of solute}}{\text{Total mass of solution}} \times 100$

Mass of solute per volume of solution

When both solute and solvent are liquids

For extremely dilute solutions

$1 \text{ mg/L} = 1 \text{ ppm}$

Moles of solute per litre of solution

$M$ or $\text{mol/L}$

Always with chemical formula, e.g., $1 \text{ M NaOH}$

Prepare solutions with accurate concentrations