Calculations of solutions

Question 1

How does dilution occur?

Answer 1

When more solvent is added, the solute per unit volume in the solution decreases, in-turn decreasing the concentration of the solute.

Question 2

Concentration:

Answer 2

Amount of solute dissolved in solvent, per unit volume. (mol/L or M)

Question 3

Different Units for Concentration:

Answer 3

-g/L
- mol/L
- ppm (mg/kg)

Question 4

Grams per Litre calculation:

Answer 4

(Mass of Solute) g / (Volume of solution) L

Question 5

PPM Calculation:

Answer 5

(Mass of solute) mg / (Mass of solution) Kg

Question 6

Concentration before and after dilution calculation:

Answer 6

C1 x V1 = C2 x V2