Make Your Chemistry Classes More Elemental

Whether you are teaching Beer’s Law or exploring how humans use food for energy, Vernier technology and investigations will help your students better understand important chemistry concepts. Give your students insight into this vital subject with interactive learning opportunities from Vernier. With Vernier technology, you can engage students and foster a lifelong love of learning.

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Featured Chemistry Experiments

Household Acids and Bases

Many common household solutions contain acids and bases. Acid-base indicators, such as litmus and red cabbage juice, turn different colors in acidic and basic solutions. They can, therefore, be used to show if a solution is acidic or basic. An acid turns blue litmus paper red, and a base turns red litmus paper blue. The acidity of a solution can be expressed using the pH scale. Acidic solutions have pH values less than 7, basic solutions have pH values greater than 7, and neutral solutions have pH equal to 7.

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Boyle’s Law: Pressure-Volume Relationship in Gases

The primary objective of this experiment is to determine the relationship between the pressure and volume of a confined gas. The gas we use will be air, and it will be confined in a syringe connected to a Gas Pressure Sensor. When the volume of the syringe is changed by moving the piston, a change occurs in the pressure exerted by the confined gas. This pressure change will be monitored using a Gas Pressure Sensor. It is assumed that temperature will be constant throughout the experiment. Pressure and volume data pairs will be collected during this experiment and then analyzed. From the data and graph, you should be able to determine what kind of mathematical relationship exists between the pressure and volume of the confined gas. Historically, this relationship was first established by Robert Boyle in 1662 and has since been known as Boyle’s law.

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Evaporation and Intermolecular Attractions

In this experiment, Temperature Probes are placed in various liquids. Evaporation occurs when the probe is removed from the liquid’s container. This evaporation is an endothermic process that results in a temperature decrease. The magnitude of a temperature decrease is, like viscosity and boiling temperature, related to the strength of intermolecular forces of attraction. In this experiment, you will study temperature changes caused by the evaporation of several liquids and relate the temperature changes to the strength of intermolecular forces of attraction. You will use the results to predict, and then measure, the temperature change for several other liquids.

You will encounter two types of organic compounds in this experiment—alkanes and alcohols. The two alkanes are n-pentane, C5H12, and n-hexane, C6H14. In addition to carbon and hydrogen atoms, alcohols also contain the -OH functional group. Methanol, CH3OH, and ethanol, C2H5OH, are two of the alcohols that we will use in this experiment. You will examine the molecular structure of alkanes and alcohols for the presence and relative strength of two intermolecular forces—hydrogen bonding and dispersion forces.

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Featured Software and Digital Curriculum

Vernier Spectral Analysis™

Our free Spectral Analysis app makes it easy to incorporate spectroscopy into your chemistry labs. Using the app, students can collect a full spectrum and explore topics such as the Beer-Lambert law, enzyme kinetics, and plant pigments.

Graphical Analysis™ 4

Collect, share, and analyze sensor data with this free software. Using Graphical Analysis 4, you can collect data from Go Direct® sensors or LabQuest sensors connected to a compatible interface.

Pivot Interactives

Pivot Interactives is a powerful supplement to hands‑on experimentation, enabling students to vary experimental parameters one at a time to view results from a set of many recordings of the same experiment.