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....

This comprehensive worksheet 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...

Titration calculations require concentration. The 10th lesson in an 11-part series challenges young chemists to use titration in order to determine the molarity and mass percent in concentrated vinegar. Analysis questions encourage...

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...

The Earth is over 70% water and so are our bodies. What makes water so special? Learn about water and its properties as it relates to solutions, dilutions, electrolytes, and molarity.

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

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...

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...