Is 0.1M HCl more electrically conductive or 0.1mol H2SO4 more electrically conductive?
Understand the Problem
The question is asking us to compare the electrical conductivity of two solutions: 0.1M HCl and 0.1mol H2SO4. To approach this, we consider the dissociation of each compound in water. HCl is a strong acid and will dissociate completely, while H2SO4 also dissociates completely in its first step and partially in its second step. Therefore, we need to analyze their ion concentrations to determine which solution is more conductive.
Answer
0.1 M H2SO4 is more electrically conductive.
0.1 M H2SO4 is more electrically conductive than 0.1 M HCl.
Answer for screen readers
0.1 M H2SO4 is more electrically conductive than 0.1 M HCl.
More Information
0.1 M H2SO4 is more conductive because it dissociates into two H+ ions and one SO4^2- ion, totaling three ions, compared to HCl, which dissociates into two ions (H+ and Cl-). More ions in the solution lead to higher conductivity.
Tips
A common mistake is not considering the number of ions each acid dissociates into. It's crucial to recognize that more ions lead to greater conductivity.
Sources
- Chemistry - Electrical Conductivity of H2SO4 and HCl - numerade.com
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