Answer: Increased ionic interactions at higher concentration reduce the ease with which ions move and carry charge per mole.
- A Increased ionic interactions at higher concentration reduce the ease with which ions move and carry charge per mole
- B Water molecules dissociate the electrolyte less readily once concentration rises beyond a certain point in most observed cases
- C Higher concentration generally turns a strong electrolyte into something closer to a weak electrolyte under typical physiological conditions
- D Strong electrolytes break down into neutral molecules at higher concentration, reducing the number of ions according to standard texts
Correct answer: A. Increased ionic interactions at higher concentration reduce the ease with which ions move and carry charge per mole
Explanation: As concentration increases, inter-ionic attractions become more significant, which reduces ionic mobility and lowers the molar conductivity, even though total conductivity may rise due to more ions being present.
In a Daniell cell, electrons flow externally from the zinc anode (oxidation) through the voltmeter to the copper cathode (reduction), while the salt bridge completes the circuit.
Concept context
Explore the link between chemical reactions and electricity. Covers galvanic cells, electrolysis, standard electrode potentials, the Nernst equation, and real-world applications like batteries and corrosion.