How Soap perform cleansing action?
Soaps and detergents perform the cleaning action because the polar parts of their molecules are water soluble due to hydrogen-bonding and non-polar parts remain outside water.
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Crystal Lattice Definition Chemistry | Unit Cell Definition
A crystal lattice is defined as an array of points representing atoms, ions or molecules of a crystal, arranged at different sites in three dimensional space. Formation: A crystal may contains atoms, ions or molecules. In crystalline solids, these atoms, ions or molecules are located at definite positions in space. These are represented by points…
Dipole Dipole Forces Definition
The attractive forces between the positive end of one molecule with the negative end of other molecule are called dipole-dipole forces. Explanation: In case of HCl, There is much electronegativity difference between hydrogen and chlorine. Due to this chlorine being more electronegative develops a partial negative charge whereas hydrogen develops partial positive charge. Hence the…
How to Use the Stock System in Chemistry?
The stock system in chemistry is used for naming ionic compounds. There are some metals, which actually have more than one possible oxidation state. The stock system let us know which version of that metal ion we are considering. For example, copper can be either from a Cu+1 or Cu+2. Similarly, iron can form Fe+2…
Definition and Explanation of Boiling Point
The temperature at which vapour 34.6°C / 78.3°C/100’C/1 pressure of a liquid becomes equal to the atmospheric pressure or any other external pressure on the liquid is called boiling point of that liquid. Mechanism: When a liquid is heated, its vapour 200 pressure increases with the increase in temperature as shown in figure. A stage…
How to do Dimensional Analysis in Chemistry?
Dimensional analysis in Chemistry is often a tricky concept for students to get. Still, it is a significant one and one that you will use throughout all of your chemistry classes. Dimensional analysis is the process we use to convert a value from one unit or set of units to another. Some important questions to…
Properties of Liquids
Liquids have following properties. 1. Liquids have definite volume. However, they do not have definite shape. 2. The molecules of liquids are in state of constant motion. The evaporation and diffusion of liquids is the result of their motion. 3. The densities of liquids are much greater than those of gases but are closer to…
