Chapter 15, Problem 15.54SP

Interpretation Introduction

Interpretation:

$\text{pH}$ of the solution should be calculated  that contains $\text{0}\text{.25}\text{M}\text{HF}$ and $\text{0}\text{.10 M}\text{NaF}$.

Concept introduction:

Equilibrium expression: The equilibrium expression is equal to the concentration of each product raised to its coefficient in a balanced chemical equation and multiplied together, divides by the concentrate ions of the product of reactants to the power of their coefficient.

Equilibrium constant: Concentration of the products to the respective molar concentration of reactants it is called equilibrium constant. If the K value is less than one the reaction will move to the left side and the K values is higher (or) greater than one the reaction will move to the right side of reaction.

$\text{K}\text{=}\frac{\text{Product}\text{concentrations}}{\text{Reactant}\text{concentrations}}$

$\text{pH:}$

$\text{pH}$ is a logarithmic expression to express a solution is acidic, basic or neutral.  The $\text{pH}$ scale has values between 1 and 14 and on which 7 is neutral, below 7 values are more acidic in nature and above 7 values are more basic in nature.

$\text{pH}\text{=}{\text{-log}}_{\text{10}}{\text{[H}}^{\text{+}}\text{]}$