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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Ion-Dipole Intermolecular Forces
Definition: The forces of attraction between ions and the molecule of the polar solvent are called ion-dipole forces. Explanation: Molecules with ionic bonds are soluble in polar solvents. Solvent molecules break the lattice of ionic compounds and ions are set free. Oppositely charged ions are produced by ionic compounds in polar solvents which surrounded by…
Energetics of Phase Changes
Whenever matter undergoes a physical or’ a chemical change, it is always accompanied by an energy change in the form of heat. This change in energy is the quantitative measure of the difference in the strength of intermolecular forces. In case of physical change at constant pressure called enthalpy change. Enthalpy change is of three…
What Can You Do With An Associates Degree In Chemistry?
The associate degree (AD) in Chemistry, equivalent to the European level 5, is a two-year higher professional education between the four-year MBO (level 4) and the four-year HBO bachelor (level 6). Many people think a four-year bachelor’s degree is far too long, especially if you want to do it part-time, you are vulnerable, because work,…
Covalent Solids Definition Chemistry | Properties
“Covalent solids are also called atomic solids because they are composed of neutral atoms of the same or of different elements. These atoms are held together by covalent bonds:” When the covalent bonds give joint molecules like diamonds, silicon carbide or aluminium nitride. When atoms join to form the covalent bonds and separate layers are…
EMPIRICAL FORMULA DEFINITION
A formula which tells the relative number of atoms present in a compound is known as empirical formula. Examples: NaCl, HO and CH2O are the empirical formulas of sodium chloride, hydrogen peroxide and glucose respectively. Determination of Empirical Formula for Organic Compounds: To determine empirical formula percentage of each element present in a compound is…
What is Atmospheric pressure?
The pressure of air that can support 760 mmHg column at sea level is called one atmosphere. OR It is a force exerted by 76 cm long column of mercury on an area of 1 cm2 at 0°C. Atmospheric Pressure at Sea Level: It is the average pressure of atmosphere at sea level. i.e.; 760…
