MORE THERMOCHEMICAL CALCULATIONS (MIXED)

Emerging chemists find their calling as they calculate the concentration of hydronium and hydroxide ions and the pH and pOH for several solutions. In some cases, values are given, and in others, actual word problems are written out....

Viewers learn where the heat goes when phase changes take place with a presentation that explains the latent heat of phase changes, or, more specifically, the molar heat of fusion, solidification, vaporization, and condensation. The show...

Is your chemistry class finding it hard to concentrate these days? Give a short molarity video a try! Pupils learn the basics of the molarity calculation as they work along with the narrator.

Do you know how to change the density of water? Show your class using a video that explains what density is and how to calculate it. Then, it goes into the units we use to measure density and how temperature impacts it. Finally, it...

In this electrical worksheet, students interpret schematics to answer a series of 31 questions about mixed frequency signals. This worksheet is printable and the answers are available on-line.

Finding a balance between too much protein and not enough doesn't have to be a guessing game. Young scientists use an interactive lesson to learn how to calculate protein content in cattle feed and how to mix feed to create the ideal...

What's the moral of this story? Units save lives! Teach measurement conversion through storytelling in a quick math-based lesson. Young scientists learn how one country's decision to swap from imperial to metric standard units caused an...

This comprehensive activity has chemistry apprentices perform calculations for several thermodynamic reactions. They will work with moles, limiting reactants, free energy, entropy, and enthalpy. Practice makes perfect, and that is what...

Can a small change in laboratory procedures save energy? Scholars test three different methods for heating water in a science lab. Then, they calculate the energy efficiency for each and compare them to determine which uses the least...

How do different minerals affect the growth of plants? Budding botanists find out in a multi-week experiment that has them using solutions with specific mineral deficiencies. While there is a lot of preparation for the investigation,...