Chapter 19, Problem 97CP

Interpretation Introduction

Interpretation: It is given that, alkaline earth metal reacts with water to produce hydrogen. The mass of unknown alkaline earth metal, volume of water and hydrogen is given. The unknown alkaline earth metal is to be identified. The $\text{pH}$ value of this solution is to be calculated.

Concept introduction: The expression to calculate the number of moles by using the ideal gas law is,

$\begin{array}{c}PV=nRT\\ n=\frac{PV}{RT}\end{array}$

To determine: The unknown alkaline earth metal that when reacts with water produces hydrogen gas; the $\text{pH}$ value of this solution.