Chapter 13.3, Problem 39PP

Interpretation Introduction

Interpretation:

The volume of hydrogen required to react with $5L$ oxygen to form water is to be find out.

Concept introduction:

The concept of Avogadro’s Law is used to find the result.

According to this law, equal volumes of all gases under specific temperature and pressure contains equal number of molecules.

Answer to Problem 39PP

The volume of hydrogen required is $10L$

Explanation of Solution

The balanced chemical reaction involving the formation of water is:

${\mathrm{H}}_2+\frac{1}{2}{O}_2\to H_{2}O$

The equation shows that half mole of oxygen reacts with one mole of hydrogen to produce one mole of water.

Therefore $5L$ of oxygen will react with hydrogen

$\begin{array}{l}=\frac{5}{\frac{1}{2}}\\ =10L\end{array}$

Conclusion

$5L$ of oxygen require $10L$ oxygen to form water.