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Q:

# How do you convert PPM to mg/L?

A:

To convert parts per million to milligrams per liter, use the conversion factor of 1 ppm = 1 mg/L. This means that 1 part per million is equal to 1 milligram per liter.

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Milligrams per liter is an important unit of measure that illustrates the concentration of dissolved substances. This unit of measure is a ratio of mass or weight per volume. This differs from parts per million, which instead is a measure of weight per weight or mass per mass.

The unit parts per million is used when there is a very low concentration of a solution. One gram of a solution in 1000 milliliters equals 1000 parts per million. When the mass of the solution is reduced to 1/1000 of a gram in 1000 milliliters, this equals 1 part per million. Because 1000 milliliters equals one liter, 1 part per million is 1 milligram per liter.

One part per million only equals 1 milligram per liter in the event that the solvent is water. This is a direct result of water's gravity, which is very close to one. When the solute, or the substance dissolved in the solution, is less than 1 percent, it can be assumed that the liter of water weighs 1,000 grams, which is equal to 1 million milligrams.

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## Related Questions

• A:

Converting 240 kilograms to pounds involves finding the conversion factor of 2.205 pounds/kilogram and using this to create a conversion equation. Solving (240 kilograms)(2.205 pounds/kilogram) gives the answer to the conversion. The steps can be completed in just a few minutes.

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• A:

Converting kilograms to pounds can be done with the conversion factor of 2.2046 pounds per kilogram. Multiply the known information by the appropriate conversion factor, cancel the old units and solve the math. The process should take around one to two minutes, and you only need a pen and paper or calculator.

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• A:

For dilute solutions, convert molarity to ppm by multiplying the molarity by the molecular mass of the solute, then multiplying the result by 1000.