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Saturday 22 March 2014

Chemistry

The 13th century friar, Roger Bacon was the first scholar to suggest that medicine should rely on remedies provided by chemistry. He was attacked by the church and excommunicated and confined to a monastery for "certain novelties". The "certain novelties" the authorities were particularly unhappy about were his chemical research as they accused him of dealing in black magic and alchemy.

Sir William Perkin  (1838-1907), the founder of the organic chemical industry first became interested in chemistry at the age of 13. He recorded, “a young friend showed me some chemical experiments and the wonderful power of substances to crystallise in definite forms especially struck me... and the possibility also of making new discoveries impressed me very much.... I immediately commenced to accumulate bottles of chemicals and make experiments.”

Dmitri Mendeleev presented the first periodic table to the Russian Chemical Society on March 6, 1869. He was working as a chemistry consultant for local cheese factories when he had the idea and claimed to have envisioned the complete arrangement of the elements in a dream.



In 1850 Dmitri Mendeleev walked almost a thousand miles to Moscow so he could apply for the University of Moscow. Although he was not accepted, he walked to St. Petersburg where he was accepted, And with that education he developed the periodic table of the elements

The letter J is the only letter that doesn't appear on the Periodic Table.

Sir Edward Elgar enjoyed a wide range of interests away from music including chemistry. In the 1900s he spent much time in his laboratory, which he dubbed ‘The Ark’, where he conducted experiments and even made some soap.

Before entering politics, former Prime Minister Margaret Thatcher put her Oxford chemistry degree to good use with a research job at food manufacturer J. Lyons and Co.

Pope Francis earned a master’s degree in Chemistry from the University of Buenos Aires

Mole is the SI unit of measurement used to measure the number of things, usually atoms or molecules. One mole of something is equal to 6.02214078×1023 of same things (Avogadro's number). 

The Avogadro constant is named after the Italian scientist Amedeo Avogadro (1776–1856), who, in 1811, first proposed that the volume of a gas (at a given pressure and temperature) is proportional to the number of atoms or molecules regardless of the nature of the gas. 

Amedeo Avogadro

Scientists use this number because it is the number of carbon atoms in 12 grams of carbon-12, which is the most common kind of carbon.

Mole Day is an unofficial holiday celebrated among chemists, chemistry students and chemistry enthusiasts on October 23, between 6:02 a.m. and 6:02 p.m., making the date 6:02 10/23 in the American style of writing dates. The time and date are derived from the Avogadro number. 

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