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What is marine chemistry?
What is the surface of the ocean composed of?
How does human activity affect ocean chemistry?
How is ocean pH determined?
Marine chemistry, also known as ocean chemistry or chemical oceanography, is the study of chemical content in marine environments as influenced by plate tectonics and seafloor spreading, turbidity, currents, sediments, pH levels, atmospheric constituents, metamorphic activity, and ecology.
The understanding of chemistry in the ocean is critical because changes can influence marine life, and in turn, human life.
Jan 21, 2008 · The surface of the ocean is mostly covered with an organic film, only a few molecular layers thick. This is believed to consist of hydrocarbons, lipids, and the like, but glycoproteins and proteoglycans have been reported.
May 20, 2024 · Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases. Seawater constitutes a rich source of various commercially important chemical elements.
How is ocean acidification affecting ocean chemistry? Seawater has a pH of 8.2 on average because it contains naturally occurring alkaline ions that come primarily from weathering of continental rocks. When seawater absorbs carbon dioxide from the atmosphere, carbonic acid is produced (see Box 1), reducing the water’s pH.
At its core, the issue of ocean acidification is simple chemistry. There are two important things to remember about what happens when carbon dioxide dissolves in seawater. First, the pH of seawater water gets lower as it becomes more acidic.
Marine chemistry is the study of the chemical composition and chemical processes of the world’s oceans. Some of the key processes studied are the cycling of: inorganic and...
