Assay of Borax
Molecular Formula: Na2B4O7⋅10H2O Molecular Weight: 381.4 Assay: Weigh accurately about 3 g of borax dissolved in 75 mL …
B Pharmacy
Assay of Benzoic Acid
Molecular formula: C7H6O2 Molecular Weight: 122.1 Assay: Weigh accurately about 1.0 g and dissolve in 15 mL of …
Assay of Aspirin
Molecular formula: C9H8O4 Molecular Weight: 180.2 Assay: Weigh accurately about 1.5 g, dissolve in 15 mL of ethanol …
Assay Ammonium Chloride
Molecular formula: NH4Cl Molecular Weight: 53.5 Assay: Weigh accurately about 0.1 g of ammonium chloride, dissolve it in …
Theories of Indicators
Two theories have been proposed to explain the change of colour of acid-base indicators with a change in …
Acid Base Indicators
An auxiliary substance which helps in the usual detection of the completion of the titration or equivalence point …
What is the common ion effect?
The common ion effect is an application of the Le-Chateliers principle (1884) which states as: “If a change …
Lewis Theory of Acids and Bases
All amphiprotic substances are also amphoteric, but the reverse is not true. There are amphoteric substances that do not …
The Arrhenius Theory of Acids and Bases
Svante Arrhenius in 1887 proposed the first theory describing acids and bases. According to this theory. An acid …
Definition of Acid Base Titration
In acid-base titration, acids, and bases react with each other in a process called neutralization to form salt …