Chapter 20.7, Problem 1Q

Interpretation Introduction

Interpretation: It should be defined for the concentration of various hydroxide a ta certain $\text{pH}$ value.

Concept Introduction: Alkalinity of a water supply is its capacity to accept hydronium ions.

This factor is important to known when assessing water quality, methods of water treatment, and the biology of natural water because the amount of biomass that can be produced depends on the alkalinity.’

Alkanity (Alk) is defined by the equation

$\text{Alk = }\left[{\text{HCO}}_{\text{3}}{}^{\text{-}}\right]\text{+2}\left[{\text{CO}}_{\text{3}}{}^{\text{2-}}\right]\text{+}\left[{\text{OH}}^{\text{-}}\right]$