Monday Reading Concepts
By Kelly Moran
The main concepts of monday reading were about introducing the concept of mole in chemistry. Mole is a devised counting unit that is important in calculating the metal content of ores and solving similar problems. The mole is thought of as a chemist's dozen. To find the molar mass of a substance you can just look at the atomic masses of each element on the periodic table. Molar mass can be used to count particles by simply measuring the mass of each material. Mole is = 6.02 * 10 to the 23rd. Once ores are mined from the lithosphere, they must refined (perfected/take all the impurities out of the ore). Refining refers to the removal of impurities from a desired material. When a reactant gains one or more electron it is called a reduction. Any reactant that appears to lose one or more electrons is said to be oxidized. Oxidation and reduction occur together in what chemists call oxidation-reduction reactions (a.k.a redox reactions). A reaction that provides electrons is known as a reducing agent. These were all the main concepts and terms from the reading.
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