Chapter 21, Problem 74IAE

Interpretation Introduction

Interpretation:

The complete conversion of ${\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)$ to $\text{NaOH}$ should be shown by the reaction:

$\text{Ca}{\left(\text{OH}\right)}_{\text{2}}\left(\text{s}\right){\text{+Na}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)\to {\text{CaCO}}_{\text{3}}\left(\text{s}\right)\text{+2NaOH}\left(\text{aq}\right)$

Concept introduction:

The balanced reaction for the formation of ${\text{CaCO}}_{\text{3}}$ and $\text{NaOH}$ from $\text{Ca}{\left(\text{OH}\right)}_{\text{2}}$ and ${\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}$ is as follows:

$\text{Ca}{\left(\text{OH}\right)}_{\text{2}}\left(\text{s}\right){\text{+Na}}_{\text{2}}{\text{CO}}_{\text{3}}\left(\text{aq}\right)\to {\text{CaCO}}_{\text{3}}\left(\text{s}\right)\text{+2NaOH}\left(\text{aq}\right)$

The net ionic equation for the reaction is as follows:

$\text{Ca}{\left(\text{OH}\right)}_{\text{2}}\left(\text{s}\right){\text{+CO}}_3^{2-}\left(\text{aq}\right)\to {\text{CaCO}}_{\text{3}}\left(\text{s}\right){\text{+2OH}}^{-}\left(\text{aq}\right)$