3) When the pH of 0.10M HClO2 was measured, it was found to be 1.2. What are the values of Ka and pKa of chlorous acid?
So far, I have found the concentration of H+ by setting up 10^-1.2 and I got [H+] = 0.0631. I then tried solving for Ka using (0.0631)^2/(0.1-0.0631) and got Ka = 0.11. However, the answer key says 0.09. I am having trouble seeing how I got a different value...
Thanks in advance!
Bookwork 6D #3
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Meagan Kimbrell 1I
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Anthony Tam
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Re: Bookwork 6D #3
I also got 0.11 for the Ka value, I think that it might be a typo in the solutions.
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Barbara Soliman 1G
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Re: Bookwork 6D #3
I got the same answer as you, Meagan. It's probably a typo. Also, I believe the answers for part b are also typos because I got completely different answers for those too. Hope this helps!
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sadiebrebes
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Re: Bookwork 6D #3
Meagan Kimbrell 1I wrote:3) When the pH of 0.10M HClO2 was measured, it was found to be 1.2. What are the values of Ka and pKa of chlorous acid?
So far, I have found the concentration of H+ by setting up 10^-1.2 and I got [H+] = 0.0631. I then tried solving for Ka using (0.0631)^2/(0.1-0.0631) and got Ka = 0.11. However, the answer key says 0.09. I am having trouble seeing how I got a different value...
Thanks in advance!
Hey I got the same answer I was so stuck! Sometimes the book has errors. I think ill ask a ta about it soon to double check.
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