Chapter 17, Problem 142E

Interpretation Introduction

Interpretation:

The concentration of solution is defined as ratio of number of moles and volume of solution in litre. It is obtained in form of molarity, molality, mole fraction etc. Larger the number of moles of solute for a fixed volume larger will be its concentration.

Concept introduction:

The ionization of acetic acid (CH₃COOH) in water is as follows:-

$C{H}_{3}COOH\left(aq\right)+H_{2}O\left(l\right)\rightleftharpoons C{H}_{3}CO{O}^{-}\left(aq\right)+H_3{O}^{+}\left(aq\right)$

Dissociation

The of salt is as follows:-

$N{H}_{4}cl\rightleftharpoons N{H}_4^{+}\left(aq\right)+c{l}^{-}\left(aq\right)$

For the reaction,

ax + by → cz + dA

Equilibrium constant (K_a)=$\frac{{\left[Z\right]}^c{\left[A\right]}^d}{{\left[x\right]}^a{\left[y\right]}^b}$