Interactive Chemistry Laboratory

Mixing · Dilution · Concentration

Solutions • Concentration • Conservation of solute
Developed by Dr. Georgios Malis
● Works offline

Mixing two solutions

The solute from both containers ends up in the final solution.
Visual model
nfinal = n1 + n2  •  C = n/V
SCHEMATIC REPRESENTATION
Solute particlesSolvent (water)Solution change
100%
Initial stateFinal state
Initial concentration0,60 MSolution 1
Final concentration0,40 Mideal model
Final volume1,50 Lsum of volumes
Dots symbolize solute particles, not their actual scale or quantity.
Classroom activity

Try and predict

Choose a preset and ask students to predict whether the final concentration will increase, decrease, or fall between the initial values.

Tip: click “Reset” before each demonstration, then “Play”.

Quick check

Mini quiz: Solutions

Question 1 / 6

Correct answers: 0 / 0