Page 1 of 1
Posted: Sun Dec 08, 2019 10:14 pm
How is the pH of a solution is related to its hydronium ion and hydroxide ion concentrations?
Posted: Sun Dec 08, 2019 10:17 pm
The pH is the negative log of the solution's H3O+ concentration. The pOH would be the negative log of its OH- concentration, and this related to pH because pH = 14-pOH.
Posted: Sun Dec 08, 2019 10:25 pm
p just means -log of something, so for pH that something is the concentration of H+ or H3O+ and the pOH is substituting in the concentration of OH-
Posted: Sun Dec 08, 2019 10:27 pm
The pH scale is based on the self-ionization of water, where two water molecules combine to form hydronium and hydroxide ions. pH is a measurement of how acidic a solution is. A higher concentration of the hydronium ion means the solution is acidic and will have a lower pH (below 7), while a higher concentration of the hydroxide ion means the solution is basic and will have a higher pH (above 7).
Posted: Sun Dec 08, 2019 10:33 pm
By definition the pH is the -log of the concentration of hydronium atoms. It is simply a mathematical representation of the hydronium ion concentration.
The pOH is the -log of the concentration of hydroxide ions.
Posted: Sun Dec 08, 2019 10:38 pm
The higher the H+ concentration, the higher the H3O+ concentration (they are the same thing H3O means reacted with water), which results in a lower pH. Same applies for OH.
Posted: Mon Dec 09, 2019 3:39 am
The higher the H3)+ concentration the lower the pH and the higher the pOH. The higher the OH- concentration the higher the pH and the lower the pOH.