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Multiple Choice
Which of the following solutions will be the best conductor of electricity?
A
0.1 M CH3COOH (aq)
B
0.1 M NaCl (aq)
C
0.1 M C6H12O6 (aq)
Verified step by step guidance
1
Understand that electrical conductivity in aqueous solutions depends on the presence of ions that can move freely and carry charge.
Recognize that NaCl is a strong electrolyte and dissociates completely into Na\textsuperscript{+} and Cl\textsuperscript{-} ions, providing many charge carriers.
Know that CH3COOH (acetic acid) is a weak acid and only partially ionizes in water, so it produces fewer ions compared to NaCl at the same concentration.
Realize that C6H12O6 (glucose) is a molecular compound that does not ionize in water, so it produces virtually no ions and thus conducts electricity very poorly.
Conclude that the solution with the highest concentration of ions, which is 0.1 M NaCl, will be the best conductor of electricity.