Search results
Results from the WOW.Com Content Network
Carbon dioxide dissolves in the ocean to form carbonic acid (H 2 CO 3), bicarbonate (HCO − 3), and carbonate (CO 2− 3). There is about fifty times as much carbon dioxide dissolved in the oceans as exists in the atmosphere. The oceans act as an enormous carbon sink, and have taken up about a third of CO 2 emitted by human activity. [90
Dissolved inorganic carbon (DIC) is the largest pool. It constitutes around 38,000 Pg C [18] and includes dissolved carbon dioxide (CO 2), bicarbonate (HCO − 3), carbonate (CO 2− 3), and carbonic acid (H 2 C O 3). The equilibrium between carbonic acid and carbonate determines the pH of the seawater. Carbon dioxide dissolves easily in water ...
Hence the majority of carbon dioxide at geophysical or biological air-water interfaces does not convert to carbonic acid, remaining dissolved CO 2 gas. However, the uncatalyzed equilibrium is reached quite slowly: the rate constants are 0.039 s −1 for hydration and 23 s −1 for dehydration.
The Oceanic carbon cycle is a central process to the global carbon cycle and contains both inorganic carbon (carbon not associated with a living thing, such as carbon dioxide) and organic carbon (carbon that is, or has been, incorporated into a living thing). Part of the marine carbon cycle transforms carbon between non-living and living matter.
Carbon dioxide, a by-product of cellular respiration, is dissolved in the blood, where it is taken up by red blood cells and converted to carbonic acid by carbonic anhydrase. Most of the carbonic acid then dissociates to bicarbonate and hydrogen ions.
‡ Dissolved CO 2 volume per volume H 2 O: grams CO 2 per 100 ml H 2 O: 0 °C: 1.713: 0.3346 1 °C: ... Carbon dioxide liquid/vapor equilibrium thermodynamic data ...
Dry ice is the solid form of carbon dioxide (CO 2), a molecule consisting of a single carbon atom bonded to two oxygen atoms. Dry ice is colorless, odorless, and non-flammable, and can lower the pH of a solution when dissolved in water , forming carbonic acid (H 2 CO 3 ).
Because organic material, such as fecal pellets from copepods, sink from the surface waters into deeper water, deep water masses tend to accumulate dissolved carbon dioxide as they age. The oldest water masses have the highest concentrations of CO 2 and therefore the shallowest CCD.