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Molarity to PPM Calculator

Formula

To calculate the concentration in parts per million ( $PPM$ ):

$PPM = \text{Molarity (mol/L)} \times \text{Molar Mass (g/mol)} \times 1000$

Where:

$PPM$ is the concentration in parts per million
Molarity is the concentration in moles per liter (mol/L)
Molar Mass is the mass of one mole of the substance (g/mol)

What is PPM?

PPM stands for "parts per million" and is a unit commonly used to express the concentration of a substance in a solution. It denotes the number of parts of a substance in a million parts of the total solution. It is equivalent to milligrams of substance per liter of solution (mg/L).

Example Calculation 1

Let's assume the following values:

Molarity = 0.01 mol/L
Molar Mass = 58.44 g/mol (for NaCl)

Using the formula:

$PPM = 0.01 \times 58.44 \times 1000 = 584.4 \text{ ppm}$

The concentration is 584.4 ppm.

Example Calculation 2

Let's assume the following values:

Molarity = 0.05 mol/L
Molar Mass = 18.015 g/mol (for H2O)

Using the formula:

$PPM = 0.05 \times 18.015 \times 1000 = 900.75 \text{ ppm}$

The concentration is 900.75 ppm.