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You will need a different ppm calculation if you are using it in other contexts, such as: Mixing fertilizer solutions for horticulture and.Maintenance of chemical levels in aquariums.Measurements of drinking water quality.Some situations where you may need to convert ppm to molarity include: There are 6.0221409 * 10 23 molecules or particles in one mole. Many concentration calculations use the mole units because we're dealing with a great number of molecules. On the other hand, molarity is molar concentration, meaning that it tells you how many moles of molecules are in one L of water.

Did you know that ppm is used in different ways depending on the context? When dealing with dilute solutions, 1 ppm can be approximated as 1 mg of substance per liter of water, or 1 mg/L. Both ppm (parts per million) and molarity are measures of concentration.