At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Ask your questions and receive detailed answers from professionals with extensive experience in various fields. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Potassium permanganate [tex]$\left( KMnO_4 \right)$[/tex] reacts with hydrochloric acid [tex]$\left( HCl \right)$[/tex] to form potassium chloride [tex]$\left( KCl \right)$[/tex], manganese chloride [tex]$\left( MnCl_2 \right)$[/tex], water [tex]$\left( H_2O \right)$[/tex], and chlorine gas [tex]$\left( Cl_2 \right)$[/tex]. The balanced chemical equation is:

[tex]\[ 2 KMnO_4 + 16 HCl \rightarrow 2 KCl + 2 MnCl_2 + 8 H_2O + 5 Cl_2 \][/tex]

Select the correct ratios of each of the following substances.

[tex]\[
\begin{array}{l}
KMnO_4 : KCl = \square \\
HCl : H_2O = \square
\end{array}
\][/tex]

[tex]\[
KMnO_4 : Cl_2 = \square
\][/tex]

[tex]\[
HCl : MnCl_2 = \square
\][/tex]


Sagot :

To determine the ratios of the substances involved in the balanced chemical equation:

[tex]\[ 2 \, KMnO_4 + 16 \, HCl \rightarrow 2 \, KCl + 2 \, MnCl_2 + 8 \, H_2O + 5 \, Cl_2 \][/tex]

we break it down step-by-step.

1. Ratio of [tex]\( KMnO_4 \)[/tex] to [tex]\( KCl \)[/tex]:
From the balanced equation, 2 moles of [tex]\( KMnO_4 \)[/tex] produce 2 moles of [tex]\( KCl \)[/tex].
[tex]\[ \frac{KMnO_4}{KCl} = \frac{2}{2} = 1.0 \][/tex]

2. Ratio of [tex]\( HCl \)[/tex] to [tex]\( H_2O \)[/tex]:
From the balanced equation, 16 moles of [tex]\( HCl \)[/tex] produce 8 moles of [tex]\( H_2O \)[/tex].
[tex]\[ \frac{HCl}{H_2O} = \frac{16}{8} = 2.0 \][/tex]

3. Ratio of [tex]\( KMnO_4 \)[/tex] to [tex]\( Cl_2 \)[/tex]:
From the balanced equation, 2 moles of [tex]\( KMnO_4 \)[/tex] produce 5 moles of [tex]\( Cl_2 \)[/tex].
[tex]\[ \frac{KMnO_4}{Cl_2} = \frac{2}{5} = 0.4 \][/tex]

4. Ratio of [tex]\( HCl \)[/tex] to [tex]\( MnCl_2 \)[/tex]:
From the balanced equation, 16 moles of [tex]\( HCl \)[/tex] produce 2 moles of [tex]\( MnCl_2 \)[/tex].
[tex]\[ \frac{HCl}{MnCl_2} = \frac{16}{2} = 8.0 \][/tex]

Hence, the correct ratios of each of the substances are:

[tex]\[ \begin{array}{l} KMnO_4 : KCl = 1.0 \\ HCl : H_2O = 2.0 \\ KMnO_4 : Cl_2 = 0.4 \\ HCl : MnCl_2 = 8.0 \\ \end{array} \][/tex]