Salt concentration and its electrical resistance

AI Thread Summary
The discussion centers on the relationship between salt concentration in distilled water and its electrical resistance, exploring whether a saltwater solution can be considered an ohmic conductor. The resistance of the solution is influenced by the concentration of salt, with Ohm's Law (R= V/I) being used for practical calculations. A characteristic conductivity or resistivity exists for salt solutions, which varies with concentration. Additionally, the geometry of the cell affects its overall resistance. For theoretical values, further research on salt solution conductivity is recommended.
Jane Bondarenko
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What would be the theoretical relationship between/ a formula for the salt concentration in distilled water and its electrical resistance?
 
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Jane Bondarenko said:
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?
 
jbriggs444 said:
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.
 
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.
 

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