Final answer:
The concentration of sodium chloride in water affects the electrical resistivity of the solution. The movement of Na+ and Cl- ions in the solution contributes to the conductivity. Ohm's law equation R=V/I can be used to determine the electrical resistivity.
Step-by-step explanation:
The concentration of sodium chloride in water affects the electrical resistivity of the solution.
Sodium chloride is an ionic compound that dissociates into Na+ and Cl- ions when dissolved in water.
The movement of these ions in the solution contributes to the conductivity of the solution.
The electrical resistivity of a solution can be determined using Ohm's law equation R=V/I, where R is the resistance, V is voltage, and I is current.