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Pure water has extremely low conductivity but any dissolved salts in the water increase its conductivity. Sea water with 3% salt has a high conductivity of 5 S/m.
Specific conductivity is a measure of the ability of water to conduct an electrical current. It is highly dependent on the amount of dissolved solids (such as salt) in the water. Pure water, such as distilled water, will have a very low specific conductance, and sea water will have a high specific conductance.
Oceanographers measure the salinity of the ocean by hand held refractometer, hydrometer, and conductivity meter.
by measuring the conductivity
We need to measure the electrical conductivity.
yes it does
The commonest test is to check the electrical conductivity between two electrodes. Pure water has very poor conductivity, but the conductivity improves as more ions are dissolved in it. Sea water has a conductivity of around 5 S/m (Siemens per metre) Drinking water has a conductivity of 0.005 - 0.05 S/m . Ultra-pure water has a much lower conductivity of 5.5 x 10-6 S/m - a million times smaller than that of sea water.
Water will conduct electricity if salt NaCl is dissolved in it. The conductivity is proportional to the salt concentration, and 3% gives a conductivity of 5 S/m, as in sea water.
It isn't! Your equipment is just not sensitive enough to measure it.
A PH meter measures conductivity to tell the amount of Hydrogen in a solution. A conductivity meter is used to measure the purity of water in ohms. A battery is a great example of solution conductivity at work.
One reason is to teste the buoyancy of the water and density. Another reason is to test how the sea life is doing. Some marine animals can't live in salt water and some can't live in fresh water. They test the salinity to test if the water is suitable for life
Sea water has the best electrical conductivity. Ions from the salt can conduct electricity - but not very well.