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There are two answers: bicarbonate has two pKa's - because bicarbonate can gain a proton to become carbonic acid or lose a proton to become carbonate. Two reactions; two pKa's. The pKa for bicarbonate carbonic acid reaction is 6.4 The pKa for bicarbonate carbonate reaction is 10.3 Both pKa's are temperature sensitive.
Wiki User
∙ 16y ago
Wiki User
∙ 9y agoPka, (acid-ionization constant) is a measure of strength of an acid in a solution and is the equilibrium constant chemical reaction dissociation in acid based reactions. Sodium chloride or "table salt" has strong bases and acids and would not need Pka.
Wiki User
∙ 9y agoSodium chloride, NaCl, is not an acid so it does not have a Ka or pKa value. Sodium chloride is a neutral salt.
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PKa of NaHCO3?
The pKa value for sodium bicarbonate (NaHCO3) is 10.3. This provides a measure of the acid strength of bicarbonate. People often make the mistake of reporting the pKa value of 6.3 for bicarbonate. However, that is the pKa value of carbonic acid (not bicarbonate). It relates to the ease of the first deprotonation of carbonic acid to form bicarbonate. The pKa of bicarbonate relates to the deportation of bicarbonate to form carbonate. This distinction is important, since carbonic acid has two pKa's, the higher of which represents that second deprotonation.
Is sodium benzoate soluble in sodium chloride?
Yes, Benzoic acid is a weak acid (pKa ~ 4.2) that will dissolve in weak base such as sodium bicarbonate (pKa ~ 6.4)
What is pka value for sodium hydride?
The conjugate acid is Hydrogen (H2), the pKa of which is 35.
Why sodium hydrogensulphate functions as an acid and look up its pKa value?
Sodium hydrogensulfate contains the HSO4- ion therfore it can function as an acid. It's pKa value is 1.9.
What is the pKa value for sodium octanesulfonate?
The pKa of sulfonic acid is < 0
Why is bicarbonate of soda alkaline?
Its ability to accept protons (basic property) is somewhat stronger (lower pK-value) than its proton donating property (very weak acid, higher pKa):base: HCO3- + H+ ---> H2CO3 pKb=7.64acid : HCO3- -> H+ + CO32- pKa=10.25As proof of this the pH value of a pure sodium bicarbonate is just above 7: pH about 8.0
What is the pKa value of a ceftriaxone?
eftriaxone sodium has pKa values of 3, 3.2, and 4.1.
Effective pH range for sodium phosphate buffer of the pka value 2.15?
The effective range should be the pKa +/- 1. Therefore, the range should be 1.15 to 3.15.
Is sodium bicarbonate blue?
Sodium bicarbonate is white.
What is the pka value of Doxofylline?
Doxofylline Pka value is about 9.8.
What is the Pka of sodium hydroxide?
15,7
Is sodium bicarbonate a simple sugar?
No. Sodium bicarbonate is a salt.
