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Topic: Carbonic acid

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  Carbonic acid - Wikipedia, the free encyclopedia
Carbon dioxide dissolved in water is in equilibrium with carbonic acid:
This figure is often quoted as the dissociation constant of carbonic acid, although this is ambiguous: it might better be referred to as the acidity constant of carbon dioxide, as it is particularly useful for calculating the pH of CO solutions.
Pure carbonic acid is predicted to be stable in the gas phase, in the absence of water, with a calculated half-life of 180,000 years.
en.wikipedia.org /wiki/Carbonic_acid   (1062 words)

 Carbonic anhydrase - Wikipedia, the free encyclopedia
Carbonic anhydrase (carbonate dehydratase) is a family of metalloenzymes (enzymes that contain one or more metal atoms as a functional component of the enzyme) that catalyze the rapid interconversion of carbon dioxide and water into carbonic acid, protons, and bicarbonate ions.
The of reaction rate of carbonic anhydrase is among the fastest of all enzymes, and its rate is typically limited by the diffusion rate of its substrates.
A novel evolutionary lineage of carbonic anhydrase (epsilon class) is a component of the carboxysome shell.
en.wikipedia.org /wiki/Carbonic_anhydrase   (664 words)

 Acid Rain
Carbonic acid is the same as that found in soda pop.
Acid rain or acid snow is a direct result of the method that the atmosphere cleans itself.
These sulfuric acid droplets are one component of the summertime haze in the eastern U.S. Some sulfuric acid is formed directly in the water droplets from the reaction of sulfur dioxide and hydrogen peroxide.
www.elmhurst.edu /~chm/vchembook/190acidrain.html   (544 words)

 Highbeam Encyclopedia - Search Results for carbonic acid   (Site not responding. Last check: 2007-10-22)
Carbon dioxide, CO 2, is the anhydride of carbonic acid, H 2 CO 3  .
Most familiar carbonates are salts that are formed by reacting an inorganic base (e.g., a metal hydroxide) with carbonic acid.
carbon dioxide CARBON DIOXIDE [carbon dioxide] chemical compound, CO 2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure.
www.encyclopedia.com /articles/02295.html   (624 words)

 Carbonic Acid Decomposition
Carbonic acid is not intrinsically any worse than a lot of other persistent compounds, but it DOES have an easy way to break down.
Carbonic acid by itself is actually a fairly stable molecule.
In most cases, carbonic acid is produced in water solution (the common baking soda + vinegar reaction, for example), so the decomposition is a foregone conclusion.
www.newton.dep.anl.gov /askasci/chem99/chem99661.htm   (589 words)

 Making Carbonic Acid   (Site not responding. Last check: 2007-10-22)
O + CO (carbonic acid) The hydrogens are now bonded to carbon instead of oxygen.
It is mostly carbonated water, carbonic acid - water is mixed with carbon dioxide under pressure.
Discuss the conversion of water to carbonic acid as it seeps through soil.
www.nps.gov /wica/Hydrology/Cave_&_Karst/Making_Carbonic_Acid.htm   (561 words)

 Carbonic acid   (Site not responding. Last check: 2007-10-22)
Carbonic acid is a weak acid that develops when mixing carbon dioxide and water.
Carbonic acid increases the water's ability to solubilize minerals from the surrounding rock.
The carbonic acid from all of the springs is combined and added to the product as a mix.
www.gerolsteiner.de /index.php?id=1686   (198 words)

 carbonic acid - HighBeam Encyclopedia
CO, a weak dibasic acid (see acids and bases) formed when carbon dioxide dissolves in water; it exists only in solution.
Carbonic acid forms carbonate and bicarbonate (or acid carbonate) salts (see carbonate) by reaction with bases.
It contributes to the sharp taste of carbonated beverages.
www.encyclopedia.com /html/c1/carbonic.asp   (176 words)

 Acid Rain
As is seen in Table I, carbon dioxide (CO) is present in the greatest concentration and therefore contributes the most to the natural acidity of rainwater.
Carbon dioxide, produced in the decomposition of organic material, is the primary source of acidity in unpolluted rainwater.
Although sulfuric acid may be produced naturally in small quantities from biological decay and volcanic activity (Figure 1), it is produced almost entirely by human activity, especially the combustion of sulfur-containing fossil fuels in power plants.
www.chemistry.wustl.edu /~edudev/Water/acidrain.html   (1885 words)

 Acid Rain
Acid rain has a pH below 5.6 due mainly to the reaction of water vapour with sulfur dioxide and the oxides of nitrogen.
Acid rain is a form of environmental pollution that damages buildings and marble statues by reacting with the calcium carbonate to form soluble calcium hydrogen carbonate (calcium bicarbonate, Ca(HCO
Carbon dioxide (CO) released from the combustion of fuels
www.ausetute.com.au /acidrain.html   (506 words)

 Re: why does carbonic acid decompose when it is created with acetic acid?
according to the chemical equation the reaction of the acetic acid and calcium carbonate of the egg shell produces calcium acetate and carbonic acid, which then decomposes into water and carbon dioxide.
my theory is that the energy given off by the spontaneous reaction of the calcium carbonate and acetic acid is enough to raise the produced carbonic acid to its activation energy for decomposing.
Since the solubility of CO is only 1.45 g/L (about 0.03 mol/L) at 25° C, most of the carbonic acid formed by dissolving an eggshell in vinegar will escape into the atmosphere.
www.madsci.org /posts/archives/may98/893186870.Ch.r.html   (407 words)

 carbonic acid
acids and bases: Classification - Classification Acids and bases can be classified as organic or inorganic.
acid anhydride - acid anhydride, chemical compound that reacts with water to form an acid (see acids and bases).
carbonate - carbonate, chemical compound containing the carbonate radical or ion, CO3-2.
www.factmonster.com /ce6/sci/A0810373.html   (119 words)

 Carbolic Acid Dewpoint   (Site not responding. Last check: 2007-10-22)
We are studying the formation of acid rain, however, one of the constituents, carbolic acid seems not to be available from published data.
Carbon dioxide and water combine to form carbonic acid, H2O + CO2 --> H2CO3.
It is not at all the same thing as carbonic acid, and is not related to carbon dioxide!
www.newton.dep.anl.gov /askasci/chem00/chem00669.htm   (281 words)

 The Carbonic-Acid-Bicarbonate Buffer in the Blood   (Site not responding. Last check: 2007-10-22)
The equilibrium on the left is an acid-base reaction that is written in the reverse format from Equation 3.
Table of Common Ions in the Periodic Properties tutorial from Chem 151.) Carbonic acid also dissociates rapidly to produce water and carbon dioxide, as shown in the equilibrium on the right of Equation 10.
Equation 11 does not meet the strict definition of a Henderson-Hasselbach equation, because this equation takes into account a non-acid-base reaction (i.e., the dissociation of carbonic acid to carbon dioxide and water), and the ratio in parentheses is not the concentration ratio of the acid to the conjugate base.
www.chemistry.wustl.edu /~courses/genchem/Tutorials/Buffers/carbonic.htm   (901 words)

 Carbonic Acid   (Site not responding. Last check: 2007-10-22)
The acid dissociates to form hydrogen ions that bond with water to form hydronium cations and bicarbonate anions.
As some of the carbon dioxide dissolves in water, carbonic acid forms.
The acid decomposes rocks very slowly and essential elements are released for growth of trees and many other organisms.
www.treedictionary.com /DICT2003/HTMLFILES/carbonic_acid.html   (118 words)

 Carbonic acid   (Site not responding. Last check: 2007-10-22)
We can represent the reaction between water and carbon dioxide with a chemical formula.
Notice that the total numbers of atoms of each element on each side is the same.
Carbonic acidis involved in another reaction, breaking down into hydrogen ions and bicarbonate ions.
www.stmarys.ca /conted/webcourses/GEO/GEO99/pubweather/carbonicacid.html   (109 words)

Define the terms "acid" and "base" and explain the relationship of pH to acidosis and alkalosis.
= carbonic acid retention, bicarb is OK. Respiratory failure: oxygenation confirms it.
Metabolic: bicarb deficit (relative to acid, bicarb is used up buffering the acid)
humboldt.edu /~pdb1/360/acid_base.htm   (261 words)

 Amazon.com: carbonic   (Site not responding. Last check: 2007-10-22)
Carbonic Anhydrase (Taylor & Francis Medicinal Chemistry Series) by Claudiu T. Supuran, Andrea Scozzafava, and Janet Conway (Hardcover - May 27, 2004)
The Carbonic Anhydrases: New Horizons (Experientia Supplementum) by W.R. Chegwidden, N.D. Carter, and Y.H. Edwards (Hardcover - Nov 15, 2000)
Carbonic -- Find Deals on carbonic and other Jewelry and Watches at DealTime.
www.amazon.com /s?ie=UTF8&search-alias=aps&keywords=carbonic&page=1   (306 words)

 Carbonic acid - definition from Biology-Online.org
The hypothetical acid of carbon dioxide and water.
It exists only in the form of its salts (carbonates), acid salts (hydrogen carbonates), amines (carbamic acid), and acid chlorides (carbonyl chloride).
This page was last modified 21:16, 3 October 2005.
www.biology-online.org /dictionary/Carbonic_acid   (110 words)

 Definition of carbonic - Merriam-Webster Online Dictionary
: of, relating to, or derived from carbon, carbonic acid, or carbon dioxide
For More Information on "carbonic" go to Britannica.com
Get the Top 10 Search Results for "carbonic"
www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=carbonic   (55 words)

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