NANSLO Remote Lab Activity: Beer-Lambert Law -- Food Dye Concentrations in Sports Drinks

This NANSLO lab activity is self-contained and can be used in first year general chemistry with lab and survey of chemistry courses. In this activity, using standard concentrations of sport drinks, the optimum wavelength of two commonly used food dyes will be determined and used to find dye concentration. The lab activity includes background information on the use of food dyes in sports drinks and their light absorption characteristics, the use of Beer-Lambert Law in measuring light absorption, and the equations used to quantify light absorption. The lab activity includes pre-lab questions, lab exercises, and data collection activities.
Microsoft Word NANSLO Remote Web-based Science Lab NANSLO Remote Lab Activity: Beer-Lambert Law -- Food Dye Concentrations in Sports Drinks used to measure and analyze the visible light absorbance spectrum of a standard solution to determine the maximum wavelength of absorbance, create multiple solutions of differing concentration of a stock solution, solve simultaneous equations for multple unknown concentrations, and report out the concentrations in two food dyes in a sports drink along with associated experimental uncertainty (error). It contains pre-laboratory questions and laboratory exercises for the assigned lab. (215 KB)

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Date:
2014-10
Primary Material Type:
Animation
Institution:
Western Interstate Commission for Higher Education
Funding Source:
TAACCCT Round 2
Subjects:
NANSLO Remote Lab Activity: Beer-Lambert Law -- Food Dye Concentrations in Sports Drink provides information on light absorption and how it relates to food dyes, formulas used to determine light absorption, and the use of the Beer-Lambert Lawto quantify light absorption in food dyes, laboratory exercises.

Industry / Occupation

Industry Partner:
Health Care
Industry Sector:
Health Care and Social Assistance (62)
Occupation:
Healthcare Practitioners and Technical Occupations (29-0000)

Education / Instructional Information

Instructional Program:
Health Professions and Related Clinical Sciences (51)
Credit Type:
  • Credit
Credential Type:
  • Associate Degree
  • Bachelors Degree
Educational Level of Materials:
  • 1st year Community College or equivalent
Time Required:
2 Hrs connected to laboratory through the Internet plus pre-lab and post-lab work
Interactivity Type:
Active - requires user to respond to prompts, questions, etc.
Quality Note:
Curriculum experts in this discipline worked with others to define learning objectives needed for this lab activity. Draft activity was shared among faculty. Based on feedback, lab activity was modified prior to distributing as final. Experts in remote web-based science labs who are also science faculty worked together to define the web-enabled interface design used by students to perform the lab activity via the Internet and created the lab setup (robotics, scientific equipment, and items needed to complete the lab activity) testing it with lab technicians and others prior to launching the final lab activity.
Quality of Subject Matter was assured by:
  • Consultations during development of instructional materials
Quality of Online/Hybrid Course Design assured by:
  • None
Course Note:
First semester General Chemistry with lab and Survey of Chemistry courses

Copyright / Licensing

Primary License:
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
 

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