Topic: Predominant Forms of an Ion? (Read 2108 times)

Simons2 · « **on:** October 25, 2016, 10:32:59 PM »

I'm currently studying for a test and one question on the review test is: At pH 4, the predominant form of arsenate ion is_____?

I have in my notes pH>5- [HA] is dominant pH<5 [A] is dominant. I thought one needed the pKa to solve a problem like this....? Any possible explanation on how to solve a problem like this will be greatly appreciated!

Borek · « **Reply #1 on:** October 26, 2016, 02:52:04 AM »

Definitely impossible to answer without the pKa value.

Topic: Predominant Forms of an Ion? (Read 2108 times)

Simons2

Predominant Forms of an Ion?

Borek

Re: Predominant Forms of an Ion?

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