What is the formula for ocean acidification?
What is the formula for ocean acidification?
To best understand what ocean acidification is, it’s important that you know about the equation behind this process. The equation itself is CO2 + H2O -> (H+) + (HCO3-). Ocean acidification is a process that results from too much carbon dioxide being absorbed into the water. Carbon dioxide is the CO2 in the equation.
What percent of the ocean is acidification?
A more acidic ocean won’t destroy all marine life in the sea, but the rise in seawater acidity of 30 percent that we have already seen is already affecting some ocean organisms.
How do you calculate the concentration of co32 in the ocean?
The equation for carbonate concentration is [CO3 -2] = K2 [HCO3-] / [H+], where K2 is the second dissociation constant for carbonic acid. Substituting this expression will give us 2 x total alkalinity = [HCO3-] + 2 x ( K2 [HCO3-] / [H+] ) + [OH-].
How do you find the pH of PCO2?
Background:
- Normal values: HCO3: 22-26 meq/L. PCO2: 35 – 45 mmHg. pH: 7.35 – 7.45.
- Quick derivation: Carbonic acid (H2CO3) equilibrium: [H+] x [HCO3-] <—> [H2CO3] <—> [CO2] x [H2O] [H+] x [HCO3-] = K x [CO2] x [H2O]
- Final: pH = 6.1 +log (HCO3-/ (0.03 x PCO2))
What is H HCO3?
The dominant acid-base buffer system in humans is the carbonic acid (H2CO3)-bicarbonate (HCO3) buffer system. Gaseous CO2, once dissolved, combines with water to form carbonic acid (dissolved CO2 + H2O -> H2CO3) and dissociates reversibly to yield hydrogen and bicarbonate ions (H2CO3 <- -> H+ + HCO3-).
What does a drop in ocean pH from 8.2 to 8.1 mean?
The ocean is not acidic! Seawater is never going to get below pH 7—so you must not know what you’re talking about.” The scale is not linear—a drop from pH 8.2 to 8.1 indicates a 30 percent increase in acidity, or concentration of hydrogen ions; a drop from 8.1 to 7.9 indicates a 150 percent increase in acidity.
What is the concentration of co2 in seawater?
The average concentration of inorganic carbon in the ocean is ~2.3 mmol kg−1 and its residence time is ~200 ka. − (>85%), as described below.
