Multiple Choice
Which term describes a substance that forms ions when dissolved in water?
30
views
6. Chemical Quantities & Aqueous Reactions
Electrolytes
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is NOT a strong electrolyte that dissociates completely in water?
A
HCl
B
KNO3
C
CH3COOH
D
NaCl
Verified step by step guidance1
Understand what a strong electrolyte is: a substance that completely dissociates into ions when dissolved in water, resulting in a solution that conducts electricity very well.
Identify the given substances and classify them based on their typical behavior in water: HCl (a strong acid), KNO3 (a soluble salt), CH3COOH (acetic acid, a weak acid), and NaCl (a soluble salt).
Recall that strong acids like HCl and soluble salts like KNO3 and NaCl dissociate completely in water, making them strong electrolytes.
Recognize that CH3COOH (acetic acid) is a weak acid, which only partially ionizes in water, so it does not dissociate completely and is therefore not a strong electrolyte.
Conclude that CH3COOH is the substance among the options that is NOT a strong electrolyte because it does not fully dissociate in aqueous solution.
2:50mWatch next
Master Electrolytes and Strong Acids with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
