K

[705596384]

When trying to find K and you have K constant such as Ka,Kb... can you just add the K constants that the question is looking for to find the K? For reference, I'm talking about question 5 from the achieve homework.

[Jonathan Sautter 1J]

Not by adding, but by multiplying them together instead.

[Tawny Vu 1A]

No, you have to multiply them! I made this same mistake, but hope this helps!

[Annica Reyes 2B]

Hi! On question 5 on the Achieve homework, I believe that the K values are multiplied, not added. Hope this helps!

[405825570]

You have to multiply them:)

[Anish_Marripati_2F]

There are several reactions when dealing with polyprotic acids. For example, H2CO3 would have two separate reactions, in which one proton would be donated each time. For the second part of your question, I believe you multiply the Kas together because the overall K value works like it would in the expression Kw=Ka x Kb. You need to multiply them to get the proper K value.

[Baffour Adusei 1L]

Hi! You have to multiply them, think about values cancelling out after the multiplication