## Ka and pH

Dina Geotas 4A
Posts: 61
Joined: Fri Sep 28, 2018 12:29 am

### Ka and pH

Is there a formula that directly relations pH and Ka? or pOH and Kb?

Sarah Fatkin 4I
Posts: 71
Joined: Fri Sep 28, 2018 12:27 am

### Re: Ka and pH

Hi! I don't think so, but it is helpful to remember that when pH is lower, Ka is smaller and when pOH is lower, Kb is smaller.

Posts: 77
Joined: Fri Sep 28, 2018 12:28 am
Been upvoted: 1 time

### Re: Ka and pH

I don't believe there's any equation that will relate the two. You would just have to use an ICE box, solve for the concentration of H3O/OH and then calculate pH/pOH

Katie Sy 1L
Posts: 57
Joined: Fri Sep 28, 2018 12:18 am

### Re: Ka and pH

i don't think there is one but just make sure to know the relationship between pka with ka and pkb with kb and you can use an ICE box to find the concentration to find the ka or kb values

Laura Gong 3H
Posts: 89
Joined: Fri Sep 28, 2018 12:26 am
Been upvoted: 1 time

### Re: Ka and pH

Knowing the Ka or Kb can help you solve for H+ or OH- concentrations (using ICE tables) that can then help you solve for pH or pOH.

Nico Edgar 4L
Posts: 32
Joined: Fri Sep 28, 2018 12:19 am

### Re: Ka and pH

No there is not. Ka/B just let you find the concentration of H+/OH- which in turn lets you find the pH.

Niveda_B_3I
Posts: 60
Joined: Fri Sep 28, 2018 12:24 am

### Re: Ka and pH

Not really. You'd have to use the Ka or Kb value to solve an ICE table and find the concentration of Hydronium ions to find that.