Convert p-functions values to Molar Concentrations

The p-function to Molar Concentration calculator computes the molar concentration based on the p-function value

INSTRUCTIONS: Enter the following:

• (pX) p-function value

Molar Concentration [X]: The concentration is returned in moles per liter.  However, this can be automatically converted to compatible units via the pull-down menu.

The Math / Science

The formula for molar concentration from p-function used in this calculator is:

 [X] = 10^-pX

where:

• [X] = molar concentration of substance X
• pX = p-function value

The "p" function is used in chemistry to handle very small numbers (p-values). It is the negative logarithm of the number being expressed.  This equation will take as input a p-function value for a chemical species and return the Molar Concentration,  for example if the pH of my water is 7.2,  I can use that to find the number of hydrogen ions in the water.