This is a comprehensive, end-of-chapter set of practice problems on stoichiometry that covers balancing chemical equations, mole-ratio calculations, limiting reactants, and percent yield concepts. The links to the corresponding topics are given below. The Mole and Molar Mass Molar Calculations … Read more
In this set of practice questions, we will summarize the main concepts of thermochemistry such as the relationship between internal energy, work and heat, exothermic and endothermic process, heat capacity, constant pressure calorimetry, constant-volume calorimetry, the enthalpy, the standard enthalpies … Read more
The following practice problems are to master to topics on the ideal gas laws: Boyle’s law, Charles’s law, and Avogadro’s Law, as well as the combined gas law equation. There are examples to work on the Dalton law of partial … Read more
This summary practice problem set covers the most common topics of chemical kinetics. You will find questions on the reaction rate, rate constant, rate law, integrated rate law, reaction half-life, and some more. The links to the corresponding topics are … Read more
This equilibrium practice problem set includes questions on writing the equilibrium constant of given chemical reactions, determining the value of the equilibrium constant based on the concentrations and partial pressures of gases, deriving a new expression for an equilibrium constant … Read more
Electron configurations tell us the number and location of electrons in an atom or an ion. Let’s first write a simple electron configuration and see what each letter and number indicate. For example, hydrogen has an electron configuration of 1s1. … Read more
Transcript of the video and more practice problems below We are going to talk about the VSEPR model or VSEPR theory which is used to predict the geometry of molecules. VSEPR stands for valence shell electron-pair repulsion and it is … Read more
Transcript of the video and more practice problems below Let’s follow the following steps to write down the Lewis structure for water, methane, and carbon dioxide. Let’s start with the first one, water. According to this procedure, we’re first … Read more
