Salt concentration and its electrical resistance

[Jane Bondarenko]

What would be the theoretical relationship between/ a formula for the salt concentration in distilled water and its electrical resistance?

 

[jbriggs444]

What would be the theoretical relationship between/ a formula for the salt concentration in distilled water and its electrical resistance?

Is a salt water solution an ohmic conductor? i.e. does it even have an electrical resistance that can be quantified with a single number?

 

[Jane Bondarenko]

Is a salt water solution an ohmic conductor? i.e. does it even have an electrical resistance that can be quantified with a single number?

Depends on the concentration of salt in water. I am doing an investigation where salt would be the independent variable and its resistance would be dependent. For practical formula for resistance I'm using Ohm's Law (R= V/I), but I need a theoretical value as well.

 

[mjc123]

A solution of salt would have a characteristic conductivity (or resistivity). The resistance of an actual cell would depend on its geometry. If you google "salt solution conductivity" I'm sure you'll find lots of information.