Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Explore our Q&A platform to find in-depth answers from a wide range of experts in different fields. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.
Sagot :
To determine which reaction will produce a solution that does not conduct electricity, we need to examine the nature of the substances involved and their behavior in water.
1. [tex]$CH_3OH(l) \rightarrow CH_3OH(aq)$[/tex]:
- Methanol ([tex]$CH_3OH$[/tex]) is a neutral organic molecule. When it dissolves in water, it does not dissociate into ions. Since electrical conductivity in a solution arises from the presence of ions, methanol in water will not conduct electricity.
2. [tex]$CaBr_2(s) \rightarrow Ca^{2+}(aq) + 2Br^{-}(aq)$[/tex]:
- Calcium bromide ([tex]$CaBr_2$[/tex]) is an ionic compound. When it dissolves in water, it dissociates into calcium ions ([tex]$Ca^{2+}$[/tex]) and bromide ions ([tex]$Br^{-}$[/tex]). These ions are free to move in solution, enabling it to conduct electricity.
3. [tex]$HF(g) + H_2O(l) \longleftrightarrow H_3O^{+}(aq) + F^{-}(aq)$[/tex]:
- Hydrofluoric acid ([tex]$HF$[/tex]) is a weak acid. When it dissolves in water, it partially ionizes to produce hydronium ions ([tex]$H_3O^+$[/tex]) and fluoride ions ([tex]$F^-$[/tex]). Even though the ionization is not complete, the ions present in the solution will still conduct electricity.
4. [tex]$NH_3(g) + H_2O(l) \longleftrightarrow NH_4^{+}(aq) + OH^{-}(aq)$[/tex]:
- Ammonia ([tex]$NH_3$[/tex]) is a weak base. When it dissolves in water, it reacts with water to produce ammonium ions ([tex]$NH_4^+$[/tex]) and hydroxide ions ([tex]$OH^-$[/tex]). These ions are also capable of conducting electricity.
From the above analysis, we can see that the reaction involving methanol ([tex]$CH_3OH$[/tex]) is the one that does not produce any ions in solution. Therefore, this reaction will produce a solution that does not conduct electricity.
Answer:
The correct reaction that produces a solution that does not conduct electricity is:
[tex]\[ \boxed{CH_3OH(l) \rightarrow CH_3OH(aq)} \][/tex]
1. [tex]$CH_3OH(l) \rightarrow CH_3OH(aq)$[/tex]:
- Methanol ([tex]$CH_3OH$[/tex]) is a neutral organic molecule. When it dissolves in water, it does not dissociate into ions. Since electrical conductivity in a solution arises from the presence of ions, methanol in water will not conduct electricity.
2. [tex]$CaBr_2(s) \rightarrow Ca^{2+}(aq) + 2Br^{-}(aq)$[/tex]:
- Calcium bromide ([tex]$CaBr_2$[/tex]) is an ionic compound. When it dissolves in water, it dissociates into calcium ions ([tex]$Ca^{2+}$[/tex]) and bromide ions ([tex]$Br^{-}$[/tex]). These ions are free to move in solution, enabling it to conduct electricity.
3. [tex]$HF(g) + H_2O(l) \longleftrightarrow H_3O^{+}(aq) + F^{-}(aq)$[/tex]:
- Hydrofluoric acid ([tex]$HF$[/tex]) is a weak acid. When it dissolves in water, it partially ionizes to produce hydronium ions ([tex]$H_3O^+$[/tex]) and fluoride ions ([tex]$F^-$[/tex]). Even though the ionization is not complete, the ions present in the solution will still conduct electricity.
4. [tex]$NH_3(g) + H_2O(l) \longleftrightarrow NH_4^{+}(aq) + OH^{-}(aq)$[/tex]:
- Ammonia ([tex]$NH_3$[/tex]) is a weak base. When it dissolves in water, it reacts with water to produce ammonium ions ([tex]$NH_4^+$[/tex]) and hydroxide ions ([tex]$OH^-$[/tex]). These ions are also capable of conducting electricity.
From the above analysis, we can see that the reaction involving methanol ([tex]$CH_3OH$[/tex]) is the one that does not produce any ions in solution. Therefore, this reaction will produce a solution that does not conduct electricity.
Answer:
The correct reaction that produces a solution that does not conduct electricity is:
[tex]\[ \boxed{CH_3OH(l) \rightarrow CH_3OH(aq)} \][/tex]
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.