Textbook Problem 6D #15 (b)

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Alyssa Ly 2G
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Textbook Problem 6D #15 (b)

Postby Alyssa Ly 2G » Fri Jan 21, 2022 12:38 pm

Hello!

"Calculate the pH of (b) 0.055M AlCl3"

For this problem, I couldn't find the Ka or Kb value on the given tables in the textbook. Can someone explain to me what I could do in order to get the Ka?

Thank you!

Nathan Tran 1B
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Re: Textbook Problem 6D #15 (b)

Postby Nathan Tran 1B » Fri Jan 21, 2022 5:58 pm

I believe for this problem you can use the value given in table 6D.1. It says Al3+ has a Ka value of 1.4x10^-5. In AlCl3, the Cl- can be ignored because it comes from a strong acid (HCl).


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