pH calculation question (1 Viewer)

[Shuuya]

Question:

The pH of an acid is given as 5.0 and it is also triprotic. Calculate the hydrogen ion concentration of the acid.

-----------------------------------------------------------------------------------

Just checking, the proticity of the acid shouldn't affect the concentration of the H₃O+ ions right? (i.e. it's already taken into account when the pH was calculated?)

 

[Bestintheworld]

I think you have to first calculate the H+, i.e. [H+] = 10^-pH and then divide by 3 to get the concentration. Divide by 3 because its triprotic

 

[Shuuya]

I think you have to first calculate the H+, i.e. [H+] = -10^pH and then divide by 3 to get the acid concentration. Divide by 3 because its triprotic

Isn't the question just to find the H⁺ ion concentration though? (as opposed to finding the acid concentration)

 

[Bestintheworld]

Isn't the question just to find the H⁺ ion concentration though? (as opposed to finding the acid concentration)

I edited my answer, it should have been like that above. I am not 100% sure though..

 

[Shuuya]

I edited my answer, it should have been like that above. I am not 100% sure though..

Ok, thanks

I was pretty sure that you only had to do that to get the acid concentration though, not sure... :/

 

[ml125]

I was pretty sure that you only had to do that to get the acid concentration though, not sure... :/

That's what I thought too..
Pretty sure you neglect the proticity of the acid, it shouldn't affect the concentration of the H3O+ ions

But then again, not completely sure bc we just started this and completely missed the lesson

 

[leehuan]

[H3O+]=10^-pH

That's enough

 

[Shuuya]

[H3O+]=10^-pH

That's enough

Thought so

 

[Carrotsticks]

Test

http://i0.kym-cdn.com/photos/images/original/000/002/116/Longcat_War.jpg

 

[Tonic Note]

Test

http://i0.kym-cdn.com/photos/images/original/000/002/116/Longcat_War.jpg

God Cat
http://vignette4.wikia.nocookie.net.../Godcat.jpg/revision/latest?cb=20070412010713