Show equilibrium expression for water, Chemistry

Assignment Help:

Q. Show Equilibrium expression for water?

Ans.

The equilibrium expression for water is equal to a constant, Kw. This constant is called the ion product of water and is equal to 1.0 x 10-14:

Kw = [H+] [OH-] = 1.0 -> 10-14

There are two equilibrium constants, Ka and Kb, which are useful in describing the strength of acids and bases.

Suppose H-A and B-OH are an acid and base, respectively. Then Ka and Kb are defined as follows:

H-A -> H+ + A- Ka = [H+] [A-] / [H-A]

B-OH -> B+ + OH- Kb = [B+] [OH-] / [B-OH]

The higher Ka or Kb is, the greater the degree of ionization by the acid or base.


Related Discussions:- Show equilibrium expression for water

Qualitative Analysis of Cations, We are asked to design a qualitative analy...

We are asked to design a qualitative analysis scheme that can be used to determine which cations are present in a solution containing only four of the following cations: Pb2+, Ag+,

CSA, WHAT DOES DSA STAND FOR

WHAT DOES DSA STAND FOR

Chain transfer agents - polymers , Chain transfer agents In Vinylic pol...

Chain transfer agents In Vinylic polymerisation several other molecules react along with main growing chain to interrupt the additional growth of the original chain. This takes

Streptomycin - drugs and medicines, Streptomycin: It was discovered in ...

Streptomycin: It was discovered in the year 1944 by Waksman. Streptomycin is successful against tuberculosis. It is as well used for other general infections such as ears, thro

Atomic absorption spectroscopy, Q1: The complexes of Fe +2   with 1, 10- ph...

Q1: The complexes of Fe +2   with 1, 10- phenanthroline has a molar absorptivity of about 11,000 L/mol cm in water at 510 nm. A 20 ml water sample thought to contain Fe +2   is mix

Determing least energy, Which of the following has the least energy: (1...

Which of the following has the least energy: (1) 2p                    (2)  3p            (3) 2s                             (4) 4d Ans: 2s

Vertical and diagonal relationship, I want lecture notes about vertical and...

I want lecture notes about vertical and diagonal relationship of first row elements with other elements of periodic table

Standard molar entropy of formation, Q. In 1982, the International Union of...

Q. In 1982, the International Union of Pure and Applied Chemistry recommended that the value of the standard pressure p o  be changed from 1 atm to 1 bar. This change affects the

Explain chemistry changes of food deterioration, Chemical Changes Duri...

Chemical Changes During the processing and storage of foods, several chemical changes occur that involve the internal food components and the external environmental factors. T

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd