Chapter 11, Problem 6STP

Interpretation Introduction

Interpretation: The complete ionic equation for the formation of the gas is to be stated.

Concept Introduction : An aqueous solution is one in which water serves as the solvent. Chemical equations typically illustrate it by adding to the appropriate chemical formula.

Answer to Problem 6STP

The complete ionic equation is ${\text{2K}}^{+}\left(aq\right)+{\text{CO}}_{\text{3}}{}^{2-}\left(aq\right)+{\text{2H}}^{+}\left(aq\right)+2{\text{Cl}}^{-}\left(aq\right)\to {\text{CO}}_{\text{2}}\left(g\right)+{\text{2K}}^{+}\left(aq\right)+2{\text{Cl}}^{-}\left(aq\right)+{\text{H}}_{\text{2}}\text{O}\left(l\right)$ .

Explanation of Solution

The content of dropper bottle P is calcium nitrate.

The content of dropper bottle Q is potassium carbonate.

The content of dropper bottle R is hydrochloric acid.

The reaction of potassium carbonate and hydrochloric acid is given as follows:

  ${\text{K}}_{\text{2}}{\text{CO}}_{\text{3}}\left(aq\right)+\text{2HCl}\left(aq\right)\to {\text{CO}}_{\text{2}}\left(g\right)+\text{2KCl}\left(aq\right)+{\text{H}}_{\text{2}}\text{O}\left(l\right)$

The complete ionic equation is given as:

  ${\text{2K}}^{+}\left(aq\right)+{\text{CO}}_{\text{3}}{}^{2-}\left(aq\right)+{\text{2H}}^{+}\left(aq\right)+2{\text{Cl}}^{-}\left(aq\right)\to {\text{CO}}_{\text{2}}\left(g\right)+{\text{2K}}^{+}\left(aq\right)+2{\text{Cl}}^{-}\left(aq\right)+{\text{H}}_{\text{2}}\text{O}\left(l\right)$