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Integrating Chemistry & Algebra II

Solutions

Introduction:

Systems of equations can be used to solve many different kinds of problems. One application is in making solutions such as is done in chemistry.

Learning Outcomes:

  • Students will be able to set up a system of equations to determine the volume of solution required.
  • Students will be able to connect this activity to the way scientists make solutions.
  • Students will be able to set up and solve a system of equations from the information given in the problems which describe the solutions provided and the one need to be made.

Curriculum Alignment:

Chemistry SCOS:

  • 1.01 Design, conduct and analyze investigations to answer questions related to chemistry. (How a solution is made)
  • 3.02 Apply mole concept. (Concentrations of solutions: percent by mass and molarity)

Algebra 2 SCOS:

  • 2.10 Use systems of two or more equations or inequalities to model and solve problems; justify results. Solve using tables, graphs, matrix operations, and algebraic properties.

Classroom time required:

  • 45 minutes

Materials needed:

  • Worksheet

Pre-activities:

  • The students need to be familiar with setting up and solving a system of equations.
  • The students need to have read the introduction to the worksheet or have learned about solutions and the vocabulary related to solutions in chemistry.
  • The students need to be familiar with how a solution is made.

Activities:

Students will write and solve system of equations to solve solution problems.

Assessment:

  • worksheet

Critical vocabulary:

  • Solution
  • Solute
  • Solvent
  • Dilute
  • Concentration
  • Molarity
  • Percent by mass(volume)

Comments:

This activity was completed by the Algebra 2 teacher during the unit on systems of equations even though the students had not yet studied solutions in chemistry.

Supplemental Files: