Your Online "Chemistry" Teacher


Home » Chemistry »

Chapters

Buffer capacity is defined as the rate of change of pH with number of moles of acid or base added. Buffer capacity = dpH / dn acid or base dpH is the change in pH and dn acid or base is the number of moles of acid ...

Continue Comments Off on The ionization constant of formic acid is 1.8 x 10-4. Around what pH will its mixture with sodium formate give buffer solution of higher capacity? Calculate the ratio of sodium formate and formic acid in a buffer of pH 4.25.

In this case, neither the cations nor the anion undergoes hydrolysis. Therefore, the solution remains neutral. For example: in the aqueous solution of NaCl, its ions Na+ and Cl- ions have no tendency to react with H+ or OH- ions of water. This is because the ...

We can derive a general equation for calculating the pH of any buffer solution. Consider a mixture of weak acid (HX) and its conjugate base. HX + H2O ⇌ H3O+ + X- Ka = [H3O+] [X-] / [HX] Taking log on both the sides, we will get: Log Ka ...

Continue Comments Off on Derive Henderson – Hasselbalch equation?

Buffer action: the ability of the buffer solution to resist the changes in pH value on the addition of small amount of an acid or a base is known as buffer action. For example: consider an acidic buffer such as a solution containing an equimolar amounts ...

Continue Comments Off on Define Buffer Action?

We know that weak acids and weak bases slightly ionize in water and equilibrium is established in their solutions. The phenomenon of suppression of the degree of dissociation of a weak acid or a weak base by the addition of a strong electrolyte containing a ...

Continue Comments Off on What do you mean by common ion effect?

The solution which resists changes in the hydrogen ion concentration on the addition of small amount of acid or base is known as buffer solution. Many medical and cosmetic formulations need a definite pH for their formulation and use. Such solutions are called buffer solutions. These ...

The main differences between solubility product and ionic product are given as under: Solubility product Ionic product Solubility product is the concentration of ions of  electrolyte, each raised to the power of their coefficients in the balanced chemical equation in a saturated solution. It is ...

Continue Comments Off on What are the differences between solubility product and ionic product?

The concept of solubility product is very useful in explaining many phenomenons. Various fields in which it can be used are:- 1. Calculation of solubility: If we know the solubility product of a meagerly soluble salt like AgCl  we can calculate the solubility of the salt. 2. In predicting ...

Continue Comments Off on What is the importance of Solubility Product?
Page 5 of 3634567
Copyright © All rights reserved. TheBigger.com | Privacy Policy | Contact Us | Copyright Policy | Useful Resources