Saltwater Concentration (Dilution & Evaporation)
by Anonymous
Set the concentration (%) of a salt solution, then add water or let it evaporate to see how the unchanging mass of salt determines the new percentage.
About this app
Saltwater Concentration is an interactive middle-school math app for exploring concentration as salt divided by total solution multiplied by 100. Adjust salt and water amounts to create target concentrations, then experiment with adding water, evaporation, and adding salt to see how the ratio changes. A challenge section asks learners to calculate the amount of salt from a concentration and solution mass.
Use cases
- Middle-school students learning percentages and ratios
- Teachers demonstrating saltwater concentration concepts
- Learners practicing dilution and evaporation problems
- Students checking calculations for the amount of salt in a solution
Features
- Interactive salt and water controls with live solution mass and concentration
- Four missions for creating target concentrations, including 50%, 10%, 100%, and 0%
- Buttons for adding 10 g of water, evaporating 10 g, or adding 5 g of salt
- Step-by-step explanatory feedback about how the concentration changes
- Four-question challenge with answer checking and correct-answer explanations
- Progress tracking for consecutive correct answers