Calculate the molarity of lemonade solutions
Summary
In this lab activity, students taste different samples of lemonade - rate them and then determine the molarity of sugar and citric acid in the lemonade.
CollapseLearning Goals
To practice calculating the moles of a substance in a solution and calculate molarity.
Context for Use
This is useful as an introduction to molarity. It is a lab which can be easily completed in one class period. To complete the lab you will need paper cups for each student, and powedered lemonade mix - such as Country Time. Students should have some introduction to concentration, solutions and molarity. This activity could be made more difficult by not making each lemonade sample one liter.
Description and Teaching Materials
The lesson is introduced as practice for calculating molarity. You will need lemonade powder, cups for all students, One liter containers for each sample of lemonade, calculators.
Teaching Notes and Tips
Assessment
Students are assessed on their accuracy calculating molarity of lemonade. students are assessend on their answers to the questions.
Standards
Describe the dynamic process by which solutes dissolve in solvents, and calculate concentrations, including percent concentration, molarity and parts per million.