This document introduces the basic concepts of organic chemistry in chemistry and life, including covalent bonds, ionic bonds, hydrogen bonds and hydrophobic interactions.
This document introduces fundamental chemistry concepts such as the mole, molar solutions, and atomic structure. It explains how many molecules are contained in a mole and provides examples of molecular weights for common substances like carbon, glucose, and sodium chloride.
It also covers chemical bonding, functional groups such as carboxyl and amino groups, and examples of simple molecules like methane, water, and sodium chloride, illustrating how atoms combine through covalent and ionic bonds.
One mole of carbon weighs 12 g.
The carboxyl group is represented as –COOH.
One mole contains 6 × 10²³ molecules.
The amino group is represented as –NH₂.