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Manipulating Equilibria to Determine Sulfites in Grape Juice—Blended Learning for Chem, 1-Yr Access

By: The Flinn Staff

Do you ever wish you had more time to spend on labs, that your students could be more independent in their progress through experimental procedures and that labs better connected to the things students experience in their lives? Flinn’s blended learning solution kits for chemistry address these questions by thoughtfully combining hands-on chemistry with digital enhancements.

In this lab, students manipulate the various equilibria occurring within grape juice to determine the sulfite concentration.

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Sulfites are commonly added to foods as a preservative; however, a small percentage of the population suffers from sulfite sensitivity. In this digitally enhanced lab, students manipulate the various equilibria occurring within grape juice to determine the sulfite concentration.

Complete for 30 students working in pairs.

Individual Flinn blended Learning Solution Kits include experiment supplies and 1 year of digital content access to one lab for 30 users. Digital features include: 

  • Anytime, anywhere digital access to prelab, technique and summary videos that help students focus on understanding core chemical concepts and progress through experiments independently.
  • Digital procedures optimized to work, with embedded assessments and real sample data and enough materials for 24–30 students working in small groups to complete each experiment
  • Unique takes on core chemistry concepts and clear connections to the things students experience in their everyday lives.
  • Virtual reality simulations that place students “inside the beaker” to connect the atomic and macroscopic scales and browser-based simulations that allow students to generate digital emission spectra and pH indicator tables. 
  • Built-in safety training—videos and assessments on pre-lab safety, proper PPE, safety equipment, procedure safety, chemical disposal, hazard recognition and emergency response.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Planning and carrying out investigations
Constructing explanations and designing solutions
Obtaining, evaluation, and communicating information

Disciplinary Core Ideas

HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Patterns
Structure and function