Vernier Software and Technology
Vernier Software & Technology
Innovative Uses

Chemistry Innovative Uses

Conductometric Titration: An Alternative to Gravimetric Analysis

Gravimetric analysis is a classic technique for determining the mass of an analyte through precipitation. Because of the complex nature of gravimetric analysis, it can be a challenging experiment. In an article published in the Journal of Chemical Education, Jennifer Garcia and Linda Shultz compare a conductometric titration to conventional gravimetric analysis and conclude that…

Subjects: Chemistry

Products Mentioned

  • Go Direct® Conductivity Probe

Explore Vitamins with New Features of Spectral Analysis

Vitamin B2, also known as riboflavin, was first isolated in 1933. It is an essential nutrient for humans as the precursor of the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). FAD plays a key role in several important enzymatic reactions in metabolism, including the Krebs cycle. Riboflavin also happens to be a relatively…

Subjects: Chemistry

Products Mentioned

  • Go Direct® SpectroVis® Plus Spectrophotometer
  • Vernier Fluorescence/UV-VIS Spectrophotometer

Discover the Wavelength

Many schools can’t afford a classroom set of spectrophotometers. So how can you use a single spectrophotometer and a class set of colorimeters to have your students discover the best wavelength of light to use in an experiment? For Beer’s law and kinetics experiments, students must choose a specific wavelength to conduct the experiment. Students…

Subjects: Chemistry

Products Mentioned

  • Go Direct® Colorimeter
  • Colorimeter

Forensic Chemistry: Analysis of a Mystery Powder

As part of the investigation of a crime scene, detectives note that a white powder is found at the location. Even though they have their suspicions, chemical and physical analyses must be performed to determine the identity of the powder. That’s where the crime scene technicians take over. Melting graph for unknown mystery powder from…

Subjects: Chemistry

Products Mentioned

  • Go Direct® Melt Station
  • Go Direct® pH Sensor
  • Go Direct® Conductivity Probe

Spotlight on New Inquiry Based Experiment for Spectroscopy

Are you interested in spectroscopy but don’t know where to begin? You are in luck! We’ve recently designed a new experiment, “A Guided Inquiry Approach to Understanding Fluorescence Spectroscopy,” to help students understand what goes on inside the “black box” of a spectrophotometer. This experiment, which can be done with either or our , has…

Subjects: Chemistry

Products Mentioned

  • Vernier Fluorescence/UV-VIS Spectrophotometer
  • Go Direct® SpectroVis® Plus Spectrophotometer

Investigating Intermolecular Forces Using the Mini GC Plus

Chromatogram of an equimolar ethanol and n-butanol mixture Taking full advantage of the , Mr. William Patrick Cunningham, from Claudia Taylor Johnson High School in San Antonio, Texas, designed an innovative experiment in which students study intermolecular forces. The experiment uses different alcohols to demonstrate how variations in molecular structure and molecular mass affect the…

Subjects: Chemistry

Products Mentioned

  • Vernier Mini GC Plus

Design-It-Clean Challenge

Ms. Alejandra Guzman, a Secondary Science Strategist for Los Fresnos CISD in Texas, shared her recent experience with Project Based Learning (PBL) in the Design-It-Clean Challenge. In this dynamic end-of-year project, students are challenged to create a water filtration device that is efficient, affordable, and sustainable. Students also create websites and marketing materials in order…

Subjects: Chemistry

Products Mentioned

  • pH Sensor
  • Conductivity Probe
  • Turbidity Sensor
  • And 3 more products

Potentiometric Titration of Aqueous Iodine

Redox titration of iodine in povidone iodine using thiosulfate In an iodine redox titration, starch, which turns blue-black in the presence of iodine, is typically used as the indicator. However, this method can be challenging for students because of the low solubility of iodine in water and the pH dependence of the reaction (which proceeds…

Subjects: Chemistry

Products Mentioned

  • ORP Sensor
  • pH Sensor
  • Drop Counter

Total Equilibrium

One Ball Total Equilibrium Tank (Spalding Dr. J 241 Series), 1985 glass, steel, sodium chloride reagent, distilled water, one basketball 64 3/4 x 30 3/4 x 13 1/4 inches © Jeff Koons Recent visitors to the Portland Art Museum were treated to a viewing of the work One Ball Total Equilibrium Tank by the internationally…

Subjects: Chemistry, Middle School Science, Physical Science

Products Mentioned

  • Go Direct® Force and Acceleration Sensor

An Inquiry Approach to Understanding the Relationship Between Dissolved Oxygen and Temperature

Image credit: Roland P. Stout, Univ. of North Carolina at Pembroke By Roland P. Stout, PhD, Univ. of North Carolina at Pembroke For several semesters I have had my freshman chemistry students monitor our campus water feature on a weekly basis using most of the Water Quality Index measurements. The water feature is an artificial…

Subjects: Chemistry

Products Mentioned

  • Vernier Optical DO Probe
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