What is the strongest Diprotic acid?
What is the strongest Diprotic acid?
sulfuric acid
Protons are lost through several stages (one at each stage), with the first proton being the fastest and most easily lost. Contrast with monoprotic acids in section Monoprotic Versus Polyprotic Acids And Bases. From the table above, we see that sulfuric acid is the strongest.
What are examples of Diprotic acids?
Diprotic acids, such as sulfuric acid (H2SO4), carbonic acid (H2CO3), hydrogen sulfide (H2S), chromic acid (H2CrO4), and oxalic acid (H2C2O4) have two acidic hydrogen atoms. Triprotic acids, such as phosphoric acid (H3PO4) and citric acid (C6H8O7), have three.
What is the Ka value of Ethanoic acid?
1.8
| Ka | Acid | Base |
|---|---|---|
| 1.8 * 10-5 | Ethanoic acid | Ethanoate (acetate) ion |
| 4.4 * 10-7 | Carbonic acid | Hydrogen carbonate ion |
| 1.1 * 10-7 | Hydrosulfuric acid | Hydrogen sulfide ion |
| 6.3 * 10-8 | Dihydrogen phosphate ion | Hydrogen phosphate ion |
What are Triprotic acids?
A triprotic acid is an acid that has three dissociable protons that undergo stepwise ionization: Phosphoric acid is a typical example: The first ionization is.
What is the Ka value of H2CO3?
4.3 x 10^-7
H2CO3 is called carbonic acid and its first acid dissociation is written below: H2CO3 <–> H+ + HCO3- As a result, the Ka expression is: Ka = ([H+][HCO3-])/[H2CO3] It should be noted that carbonic acid is a weak acid, so its Ka value in water is only 4.3 x 10^-7.
What is the Ka value of propanoic acid?
1.34×10^-5
The Ka of propanoic acid (C2H5COOH) is 1.34×10^-5.
How do you find the Ka value in chemistry?
As noted above, [H3O+] = 10-pH. Since x = [H3O+] and you know the pH of the solution, you can write x = 10-2.4. It is now possible to find a numerical value for Ka. Ka = (10-2.4)2 /(0.9 – 10-2.4) = 1.8 x 10-5.
What is Ka and PKA in chemistry?
Ka is the equilibrium constant for the dissociation reaction of a weak acid. A weak acid is one which only partially dissociates in water or an aqueous solution. The value of Ka is used to calculate pH of weak acids. The pKa value is used to choose a buffer when needed.
What is the Ka of a weak acid?
Table of Common Ka Values for Weak Acids. K a is the equilibrium constant for the dissociation reaction of a weak acid. A weak acid is one which only partially dissociates in water or an aqueous solution. The value of K a is used to calculate pH of weak acids. The pK a value is used to choose a buffer when needed.
What is Kaka for dissociation reaction?
Ka is the equilibrium constant for the dissociation reaction of a weak acid. A weak acid is one which only partially dissociates in water or an aqueous solution.
What are some examples of diprotic acids and triprotic acids?
Diprotic acids , such as sulfuric acid (H 2 SO 4 ), carbonic acid (H 2 CO 3 ), hydrogen sulfide (H 2 S), chromic acid (H 2 CrO 4 ), and oxalic acid (H 2 C 2 O 4) have two acidic hydrogen atoms. Triprotic acids, such as phosphoric acid (H 3 PO 4) and citric acid (C 6 H 8 O 7 ), have three. There is usually a large difference in