Author -

A Level Chemistry Revision: Inorganic Chemistry – Group 7(17), The Halogens

The halogens are the six nonmetallic, highly reactive elements under Group VIIa (column 17) of the periodic table. They’re very strong oxidising agents, which means they take electrons from other substances. They’re also very reactive and usually form salts with Group 1a, i.e. the alkali metals. The name halogen literally means salt-producing. Halogens in elemental form do not exist...

What is Titration Used For in Real Life?

Titration is an analytical quantitative method of determining the concentration of a known analyte by allowing it to gradually react with a titrant until an endpoint is reached. It has several industrial, medical, and commercial applications. Most students who have taken chemistry subjects in high school are familiar with the basic methods of titration. No matter what type of titration...

A Level Chemistry Revision: Inorganic Chemistry – Group 2, The Alkaline Earth Metals

Alkaline earth metals, which are under Group 2 (the second column) of the periodic table, are highly reactive metals, though they’re not as reactive as the alkali metals. Their high reactivity is the main reason they aren’t found in a pure or elemental form in nature. Structurally speaking, these metals have two valence electrons in their outermost energy level. Source Many...

How To Carry Out a Titration Experiment

A titration experiment is the gradual adding of a known concentration of a reagent, called a titrant, to an unknown concentration of an analyte (the substance being analysed) until an endpoint is reached. Titration is one of the classic experiments in chemistry, and it’s done by most students at school.  Usually, chemical indicators that change colour are used to determine...