We can use a salinometer.
A salinometer measures the amount of salt in something.
We can use a salinometer or methods of analytical chemistry.
A salimeter.
1. If you think to the mass use a balance. 2. If you think to the concentration use a salinometer or determine sodium and chlorine by chemical analysis.
We can use a conductivity meter (salinometer), a densimeter or for exact results analytical chemistry instruments for the determination of sodium.
For example concentration determination with a salinometer.
- by chemical analysis- using a salinometer
A salinometer is a device used to measure the strength of a brine solution. It measures the concentration of salt in the solution by determining its specific gravity.
To determine the concentration of salt a salinometer can be used.
A simple clay ball and straw will work just fine..
An instrument that uses electrical conductivity to measure the concentration of salt in a solution. Source: Answers.com