Chapter 12, Problem 12.57SP

Interpretation Introduction

Interpretation:

The final temperature of the solution in o C should be determined when the dissolution of ${\text{NH}}_{\text{4}}{\text{ClO}}_{\text{4}}\left(\text{s}\right)$ in water is endothermic; with ${\text{ΔH}}_{\text{solution}}\text{=33}\text{.5 kJ/mol}\text{.}$ Ifyou were to prepare a 1.00 m solution of NH₄ClO₄(s) beginning with water at ${\text{25}}^{\text{o}}\text{ C}$.Assume that specific heats of both pure water and solution are same, $\text{4}.\text{18 J}/\text{K}.\text{g}$.

Concept introduction:

Formula used:

  $\text{Q}=\text{ms}\Delta \text{T}$  $\text{(}\therefore \text{ ΔH = q)}$

where, Q is heat energy, m is mass, s is specific heat capacity, $\Delta \text{T}$ is change in temperature and $\text{ΔH}$ is change in enthalpy of a system.