`pK_w = pH+pOH`

Enter a value for all fields

pK_w^[1] is the negative log of Kw, which is the equilibrium of water. Equilibrium of water is the multiplication of the hydronium ion (H⁺) and the hydroxide ion (OH^-), equaling to 1.0x10^-14. The negative log of K_w is 14, which is also the total of pH and pOH/ 

Description

The equation is 

^[2]

where 

• pK_w is the total of pH and pOH , and equals to 14 (unit-less)
• pH is the acidity measurement (unit-less)
• pOH is the basicity measurement (unit-less)

Related Topics

• pOH
  • pOH from hydronium ion concentration
  • pOH from hydroxide ion concentration
  • pOH form pH
• pH
  • pH from hydronium ion concentration
  • pH from hydroxide ion concentration
  • pH from pOH

Supplement Material

• Khan Academy:
  • Introduction to pH, pOH, and pKw

References

[1]https://en.wikipedia.org/wiki/Self-ionization_of_water

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