This video is an interactive lesson in calculating an atom’s mass and atomic number. Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons in shells. The numbers of ...

The terms mole and molar mass are introduced and used in calculations. Introduction to the Mole and Molar Mass: The terms mole and molar mass are introduced and used in calculations.

Copper (II) sulfate commonly exists as a pentahydrate, meaning it has five water molecules associated with each molecule of CuSO₄. To calculate the molar mass of CuSO₄·5H₂O, we need to include the ...

Students learn how to calculate the percent yield for a chemical reaction. Mass/Mass Stoichiometry: Problems and Percent Yield: Students learn how to calculate the percent yield for a chemical ...

Does the Milky Way look fat in this picture? Has Andromeda been taking skinny selfies? Using a new, more accurate method for measuring the mass of galaxies, and international group of researchers has ...

Application Of Law of Mass Action: The law of mass action is one of the major topics taught to Class 11 chemistry students. This topic comes under the Equilibrium chapter of the NCERT Class 11 ...