strength of a solution

Indicators - Indicators are the chemicals that when added to solutions show whether the solution is acidic or basic, by a sudden change of their colour. The common indicators used and the colour changes observed are mentioned belo..

The pH Scale - The strength of acids and bases can be expressed in terms of the concentration of the hydronium ions or hydroxyl ions in a solution. The concentration of hydronium ions in a solution can be expressed as moles of hydronium ions per litre of solutionh..

. Thus the basic character of aliphatic amines should increase with increase of alkyl substitution. In the gasphase, the basic trend in nature is as expected i.e., tertiary amine > secondary amine > primary amine > ammonia. The basic strength in aqueous solution depends not only..

Molarity of a solution is defined as the number of moles of solute dissolved per litre of solution. Mathematically, Molarity is expressed by the symbol M. It can also be expressed as,..

In this case both the cation and anion undergo hydrolysis to the same or different extents. The resulting solution may be neutral, acidic or basic depending upon the relative strengths of acids and bases. The hydrolysis may be written as: ..

Acidic substances generate H + ions in the medium, while basic ones liberate OH - ions in the medium Certain dyes are used as indicators to detect the presence of acids and bases Strength of an acid depends on the concentration of hydronium ions present in a solution. ..

This technique is based on the differential adsorption of various components of a mixture on a suitable adsorbent called the stationary phase while the liquid in which the substance is dissolved is called the mobile or moving phase. Depending on the nature of the two phases there are various types..

Properties of Matter - A solid has certain characteristics: According to modern theory, the molecules of a solid are fixed in relation to each other. They vibrate in place, but do not wander around. This accounts for the fact that a solid keeps its own shape. Solids are usually crystalline. A solid..

The digested reaction mixture, on cooling, is transferred to a round bottomed distillation flask, and distilled with a concentrated alkali solution (NaOH). Ammonia produced is absorbed in a known volume of HCl solution of a known strength...

Strength of an acid depends on the concentration of hydronium ions present in a solution. Greater the numbers of hydronium ions present, greater is the strength of the acid. A strong acid dissociates completely in water. Example: Hydrochloric acid A weak acid di..