Chapter U4.91, Problem 3E

(a)

Interpretation Introduction

Interpretation:

The mole ratio of reactants that will produce the maximum amount of product in the given reaction should be predicted.

  ${\text{AgNO}}_{\text{3}}\left(aq\right)+\text{NaCl}\left(aq\right)\to \text{AgCl}\left(s\right)+{\text{NaNO}}_{\text{3}}\left(aq\right)$

Concept Introduction:

The amount of the substance that contains the same number of particles or atoms or molecules is termed as mole.

Answer to Problem 3E

The ratio of reactants that would produce the maximum amount of product is 1:1.

Explanation of Solution

The balanced chemical equation for the given reaction is represented as follows:

  ${\text{AgNO}}_{\text{3}}\left(aq\right)+\text{NaCl}\left(aq\right)\to \text{AgCl}\left(s\right)+{\text{NaNO}}_{\text{3}}\left(aq\right)$

According to the reaction, 1 mole of silver nitrate and NaCl reacts with each other to produce AgCl as a precipitate. Thus, the ratio of reactants that would produce the maximum amount of product is 1:1.

(b)

Interpretation Introduction

Interpretation:

The mole ratio of reactants that will produce the maximum amount of product in the given reaction should be predicted.

  $\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(aq\right)+{\text{K}}_{\text{2}}{\text{CO}}_{\text{3}}\left(aq\right)\to {\text{CuCO}}_{\text{3}}\left(s\right)+{\text{KNO}}_{\text{3}}\left(aq\right)$

Concept Introduction:

The amount of the substance that contains the same number of particles or atoms or molecules is termed as mole.

Answer to Problem 3E

The ratio of reactants that would produce the maximum amount of product is 1:1.

Explanation of Solution

The balanced chemical equation for the given reaction is represented as follows:

  $\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}\left(aq\right)+{\text{K}}_{\text{2}}{\text{CO}}_{\text{3}}\left(aq\right)\to {\text{CuCO}}_{\text{3}}\left(s\right)+2{\text{KNO}}_{\text{3}}\left(aq\right)$

According to the reaction 1 mole of $\text{Cu}{\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ reacts with 1 mole of ${\text{K}}_{\text{2}}{\text{CO}}_{\text{3}}$ to produce ${\text{CuCO}}_{\text{3}}$ thus, the ratio of reactants that would produce the maximum amount of product is 1:1.

(c)

Interpretation Introduction

Interpretation:

The mole ratio of reactants that will produce the maximum amount of product in the given reaction should be predicted.

  ${\text{ZnCl}}_2\left(aq\right)+\text{NaOH}\left(aq\right)\to \text{Zn}{\left(\text{OH}\right)}_2\left(s\right)+\text{NaCl}\left(aq\right)$

Concept Introduction:

The amount of the substance that contains the same number of particles or atoms or molecules is termed as mole.

Answer to Problem 3E

The ratio of reactants that would produce the maximum amount of product is 1:2.

Explanation of Solution

The balanced chemical equation for the given reaction is represented as follows:

  ${\text{ZnCl}}_2\left(aq\right)+2\text{NaOH}\left(aq\right)\to \text{Zn}{\left(\text{OH}\right)}_2\left(s\right)+2\text{NaCl}\left(aq\right)$

According to the reaction 1 mole of ${\text{ZnCl}}_2$ reacts with 2 moles of $\text{NaOH}$ to produce $\text{Zn}{\left(\text{OH}\right)}_{\text{2}}$ thus, the ratio of reactants that would produce the maximum amount of product is 1:2.

(d)

Interpretation Introduction

Interpretation:

The mole ratio of reactants that will produce the maximum amount of product in the given reaction should be predicted.

  ${\text{CaCl}}_{\text{2}}\left(aq\right)+{\text{Na}}_{\text{2}}{\text{C}}_{\text{2}}{\text{O}}_{\text{4}}\left(aq\right)\to {\text{CaC}}_{\text{2}}{\text{O}}_{\text{4}}\left(s\right)+\text{NaCl}\left(aq\right)$

Concept Introduction:

The amount of the substance that contains the same number of particles or atoms or molecules is termed as mole.

Answer to Problem 3E

The ratio of reactants that would produce the maximum amount of product is 1:1.

Explanation of Solution

The balanced chemical equation for the given reaction is represented as follows:

  ${\text{CaCl}}_{\text{2}}\left(aq\right)+{\text{Na}}_{\text{2}}{\text{C}}_{\text{2}}{\text{O}}_{\text{4}}\left(aq\right)\to {\text{CaC}}_{\text{2}}{\text{O}}_{\text{4}}\left(s\right)+2\text{NaCl}\left(aq\right)$

According to the reaction 1 mole of ${\text{CaCl}}_2$ reacts with 1 mole of ${\text{Na}}_{\text{2}}{\text{C}}_2{\text{O}}_{\text{4}}$ to produce ${\text{CaC}}_{\text{2}}{\text{O}}_{\text{4}}$ thus, the ratio of reactants that would produce the maximum amount of product is 1:1.