Chapter 9, Problem 9.48P

Interpretation Introduction

(a)

Interpretation:

The required volume ratio of the acid solution given in the question should be calculated.

Concept introduction:

When acid and base reacts, it forms salt and water which is called as neutralization. This reaction involves the combination of positively charged H and negatively charged OH ions to form water molecule. The neutralization of an acid and a base has pH value of 7.

In the above question a 10.0mole% aqueous sulfuric acid solution reacts with a 3.00molar caustic soda solution till they are neutralized at ${25}^{°}C$.

The acid neutralizes reaction is shown below:

${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}\left(\text{aq}\right)\text{+2NaOH}\left(\text{aq}\right)\to {\text{Na}}_{\text{2}}{\text{SO}}_{\text{4}}\left(\text{aq}\right){\text{+2H}}_{\text{2}}\text{O}\left(\text{l}\right)$

Interpretation Introduction

(b)

Interpretation:

The standard heats of formation for the three solutions involved and heat released when the reactants are at ${25}^{°}C$ should be calculated.

Concept introduction:

When acid and base reacts, it forms salt and water which is called as neutralization. This reaction involves the combination of positively charged H and negatively charged OH ions to form water molecule. The neutralization of an acid and a base has pH value of 7.

The acid neutralizes reaction is shown below:

${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}\left(\text{aq}\right)\text{+2NaOH}\left(\text{aq}\right)\to {\text{Na}}_{\text{2}}{\text{SO}}_{\text{4}}\left(\text{aq}\right){\text{+2H}}_{\text{2}}\text{O}\left(\text{l}\right)$