Polarity of Water
The partial charges and dipole for the water molecule are shown in Figure 4.5; note that the charges are significantly larger than in carbon monoxide. These partial charges result in water molecules being strongly attracted to one another in the solid and liquid phases. In other words, for a group of water molecules, the positively […]
Polar Molecules
One of the main reasons water will dissolve so many compounds is that the water molecule is polar. In chemistry, polarity refers to a separation of electric charge leading to a molecule having an electric dipole. Consider a simple linear molecule like carbon monoxide (which can be quite toxic in enclosed areas, e.g. tents and garages), […]
Structure & Properties of Water
The noblest of the elements is water. -Pindar, Greek Poet, 476 B.C. Of course, water is not an element, and almost everyone knows the chemical formula for the compound water: H2O. Many also know its bend arrangement, the atoms forming the H-O-H bonds. In Figure 1.1, both the bond angles and bond distances are represented. […]
An Introduction to Water
Anyone who can solve the problems of water will be worthy of two Nobel prizes – one for peace and one for science. -John F. Kennedy Water (H2O) is the most common substance on Earth, covering about 75% of the surface and existing in a solar-driven flux between the gas, liquid and solid phases. Of […]
Module 4:
Water
After completing this module, you will be able to: Describe the chemical and molecular properties of pure water and how they relate to water in the environment (e.g. the water cycle); Plan and conduct basic water quality monitoring using World Water Monitoring Day field kits in a sound scientific method to assess water quality; Communicate […]
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