Chapter 10, Problem 10.89AP

Interpretation Introduction

Interpretation:

The mass of given triprotic acid namely citric acid that contains 152$mEq$ should be calculated.

Concept Introduction:

Titration: It is a quantitative analysis method used to express the concentration of acid or base present in the solution.

For an acid-base titration ${\left(Eq\right)}_{acid}={\left(Eq\right)}_{base}$

That is,

$\begin{array}{l}{N}_{acid}\times V_{acid}=N_{base}\times V_{base}\\ where,\\ N=Normality\\ V=Volume\end{array}$

Normality: It generally expresses the concentration of acid or base as equivalents of acid or base present in one liter of the solution.

$\text{Normality}\left(\text{N}\right)\text{=}\frac{\text{Equivalents of acid/base}}{\text{Liters of solution}}$

Molarity: The concentration for solutions is expressed in terms of molarity as follows,

$\text{Molarity = }\frac{\text{No}\text{. of moles of solute}}{\text{Volume of solution in L}}$

The normality for any acid or base equals the molarity times of the number of ${\text{H}}^{\text{+}}\text{and}{\text{OH}}^{\text{-}}$ correspondingly.

Equivalent of Acid: Generally, 1 equivalent of ion is the number of ions which has charge of one mole.