1. Arrows:
- From 85% H₂O (15% solute) to 90% H₂O (10% solute) — water moves into the beaker with higher solute concentration.
- From 90% H₂O (10% solute) to 40% H₂O (60% solute) — water moves into the beaker with higher solute concentration.
- From 75% H₂O (25% solute) to 80% H₂O (20% solute) — water moves into the beaker with higher solute concentration.
2. Missing percentages:
- First beaker: already complete (85% H₂O, 15% solute).
- Second beaker: 90% H₂O, 10% solute — already complete.
- Third beaker: 40% H₂O, 60% solute — already complete.
- Fourth beaker: 75% H₂O, 25% solute — already complete.
- Fifth beaker: 80% H₂O, 20% solute — already complete.
3. Solution types:
- 85% H₂O / 15% solute → Hypotonic (relative to higher solute concentrations)
- 90% H₂O / 10% solute → Hypotonic (relative to 40% H₂O beaker), Isotonic relative to first beaker
- 40% H₂O / 60% solute → Hypertonic
- 75% H₂O / 25% solute → Hypotonic (relative to 80% H₂O beaker)
- 80% H₂O / 20% solute → Hypertonic (relative to 75% H₂O beaker)
Note: “Isotonic” applies only when comparing two solutions with equal solute concentrations — none of these pairs are isotonic except possibly 90% H₂O/10% solute and another identical solution, which isn’t shown. So most comparisons are hypotonic/hypertonic.
Parent Tip: Review the logic above to help your child master the concept of hypertonic hypotonic isotonic worksheet.
