MOLECULAR FORMULA DEFINITION
A formula which tells the actual number of atoms present in a molecule of a substance is known as molecular formula.
Examples: H2O2 and C6H12O6 are the molecular formulas of hydrogen peroxide and glucose respectively.
A formula which tells the actual number of atoms present in a molecule of a substance is known as molecular formula.
Examples: H2O2 and C6H12O6 are the molecular formulas of hydrogen peroxide and glucose respectively.
Many elements exist as a mixture of their isotopes. The atomic masses of such elements depend upon the number of their isotopes and their natural abundances. This is why their atomic masses are in fraction. This can be explained through following example, EXAMPLE: A sample of neon is found to consist of 20Ne, 21Ne and…
In order to bring about phase change, latent heat is absorbed without any change in temperature. Because heat energy stored in steam is greater than that of boiling water at same temperature. Therefore steam produces more severe burns than does the boiling water.
The obtaining of crystals by cooling the hot saturated solution leaving behind mother-liquor is called Crystallization. Basic Principal: The preparation of a chemical compound usually affords a crude product and there is an need to purify it by crystallization from a suitable solvent. The basic principle of crystallization is the fact that the solute should…
A reactant that controls the amount of the product formed in a chemical reaction due to its smaller amount is called limiting reactant. Excess reactant: A reactant which is present in large amount in a chemical reaction & some of its amount left after the completion of chemical reaction is called excess reactant. Explanation:…
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…
General Principle of Liquefaction The liquefaction of a gas requires high pressure and low temperature. The pressure brings the molecule of a gas close to each other. Low temperature causes to increases attractive forces. For every gas there is a temperature above which the gas cannot be liquefied, no matter how much pressure is applied….