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Two Hydrogen atoms covalently bonded to one Oxygen atom. One of the more common compounds on the surface of the earth.

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How can I calculate the resistivity of a water sample using its resistance?

For a project, I'm trying to create a water concentration sensor which measures PPM of a water sample. … In order to calculate PPM, I need to find the electrical conductivity of the water, which involves finding its resistivity. Currently, I'm able to measure the resistance of the water. …
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