The pKa for phosphoric acid is 2.15 for the first dissociation, 7.20 for the second dissociation and 12.35 for the third dissociation. These values are based on an ambient temperature of 25 degrees Celsius, and are known... More » Science Chemistry Acids & Bases

The pka values of carbonic acid are 6.3 for carbonic (I) and 10.3 for carbonic (II). Carbonic (I) has the molecular formula of H2CO3 while carbonic (II) has the molecular formula of HCO3-. More » Science Chemistry

The pKa value of an acid is used to determine the ability of an acid to donate protons in chemical reactions. Weak acids such as citric acid have a high pKa. The pKa of citric acid is 6.5. More » Science Chemistry Solutions & Mixtures
similar articles

Several carboxylic acids exist with different pKa values. The simplest carboxylic acid, acetic acid, has a pKa value of 4.7. A carboxylic acid is an organic compound containing the functional group COOH. Additional carbo... More » Science Chemistry Acids & Bases

The density of phosphoric acid (with the chemical makeup H3PO4) is 1.88 grams per cubic centimeter, when the liquid is under standard temperature and pressure conditions. Chemical indexes typically list density at 68 deg... More » Science Chemistry Acids & Bases

The chemical formula for phosphoric acid is H3PO4, according to the Encyclopaedia Britannica. Phosphoric acid is also known as orthophosphoric acid. It has been used in fertilizers, dental cements, food flavorings and te... More » Science Chemistry Acids & Bases

The primary use of phosphoric acid is in the manufacture of fertilizers, although it is also used to make synthetic detergents. Other uses of phosphoric acid include the treatment of water and metal, and it is also somet... More » Science Chemistry Acids & Bases