For the first acid dissociation constant of CO 2(aq), K a1 = -log(4.25 x 10 -7) = 6.37.īicarbonate is a very weak acid with a K a2 of 5.0 x 10 -11 and a pK a2 of 10.3. We use the same system for equilibrium constants. You know that pH is -log, pOH is -log, and pK w is -log(K w). It has two acid protons that it can lose in two separate steps.īecause the dissolved carbon dioxide is in equilibrium with carbonic acid and carbonic acid is in equilibrium with bicarbonate and a proton in water, it is convenient to consider CO 2(aq) to be the acid. There is an equilibrium between water and dissolved CO 2 that forms carbonic acid.Ĭarbonic acid, like sulfuric acid, is a diprotic acid. If some carbon dioxide is used up, more goes into solution. Other equilibria that involve dissolved carbon dioxide DO NOT affect the concentration of CO 2 in surface water. The current, average concentration of CO 2 is 387 ppm, so the concentration of carbon dioxide in all surface water is: Henry's Law: Constant Concentration in Water Remember that Henry's Law determines the concentration of dissolved carbon dioxide in an aqueous solution exposed to the atmosphere. Ekotekhnologii i Resursosberezhenie (2005), (3), 41-48.Carbon Dioxide as an Acid Carbon Dioxide as an Acid Liquid carbonic acid production at gas industry facilities. "HFA1 encoding an organelle-specific acetyl-CoA carboxylase controls mitochondrial fatty acid synthesis in Saccharomyces cerevisiae." J Biol Chem 279:21779-21786. Hoja, U., Marthol, S., Hofmann, J., Stegner, S., Schulz, R., Meier, S., Greiner, E., Schweizer, E."A consensus yeast metabolic network reconstruction obtained from a community approach to systems biology." Nat Biotechnol 26:1155-1160. V., Kirdar, B., Penttila, M., Klipp, E., Palsson, B. P., Petranovic, D., Pettifer, S., Simeonidis, E., Smallbone, K., Spasic, I., Weichart, D., Brent, R., Broomhead, D. Y., Arvas, M., Bluthgen, N., Borger, S., Costenoble, R., Heinemann, M., Hucka, M., Le Novere, N., Li, P., Liebermeister, W., Mo, M. "BRENDA, the enzyme information system in 2011." Nucleic Acids Res 39:D670-D676. Scheer, M., Grote, A., Chang, A., Schomburg, I., Munaretto, C., Rother, M., Sohngen, C., Stelzer, M., Thiele, J., Schomburg, D."Ongoing and future developments at the Universal Protein Resource." Nucleic Acids Res 39:D214-D219. Predicted LC-MS/MS Spectrum - 40V, Negative Predicted LC-MS/MS Spectrum - 20V, Negative Predicted LC-MS/MS Spectrum - 10V, Negative Predicted LC-MS/MS Spectrum - 40V, Positive Predicted LC-MS/MS Spectrum - 20V, Positive Predicted LC-MS/MS Spectrum - 10V, Positive Predicted GC-MS Spectrum - GC-MS (TBDMS_2_1) - 70eV, Positive Predicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, Positive Predicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, Positive Predicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positive Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive Organic carbonic acids are compounds comprising the carbonic acid functional group. Belongs to the class of organic compounds known as organic carbonic acids.
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