POH (from [OH-]) - VCalc

Home » How To Calculate Oh From Poh » POH (from [OH-]) - VCalc

Maybe your like

Processing...`pOH = -log([OH^-])` Enter a value for all fields

pOH[1] is the measure of basicity of a solution. pOH measurement is derived from the measure of hydroxide ion concentration. Since the ion concentration is small in the solution, it is converted by the equation above to pOH. pH scale ranges from 0 to 14, 0 being acidic and 14 being basic.  At 25oC the concentration of each ion (H+ and OH-) is 1.0x10-7(mol/L), when both of the concentrations remain equal then the solution becomes neutral, which is a pH of 7 on the scale./attachments/212cb741-1868-11e6-9770-bc764e2038f2/500px-PH_&_pOH_misc.jpg

Description

The equation is 

eq1.png[2]

where

  • pOH is the basicity measurement (unit-less)
  • [OH-] is the hydroxide ion concentration in units of (mol/L)

Related Material

  • pOH from hydronium ion concentration
  • pOH from pH
  • pH/pOH calculator

Supplement Material

  • Khan Academy:
    • Introduction to pH, pOH, and pKw
    • pH, pOH of Strong Acids and Bases

References

[1]https://en.wikipedia.org/wiki/PH#pOH

[2]Whitten, et al. 10th Edition. Pp.713

[pH diagram]http://wiki.chemprime.chemeddl.org/index.php/PH_and_pOH_in_Everyday_Life

Enhance your vCalc experience with a free account

Sign Up Now!

Tag » How To Calculate Oh From Poh