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What is the pKa of a weak acid called dihydrogen arsenate H2AsO4-1 if a 0.001M aqueous solution has a pH of 5? This is f...

What is the pKa of a weak acid called dihydrogen arsenate H2AsO4-1 if a 0.001M aqueous solution has a pH of 5?

This is for my BioChem class, the answer is supposed to be 7, can someone please very distinctly write out the steps? Also, I'm not allowed a calculator so please tell me how you know what the number would be when converting logs and exponents. Thank you!

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Answer #1

Here is the solution of your question. If you have any doubt or need any clarification please comment in comment box and will definitely resolve your query. Thanks in advance.

orula uaai 2 Pka -loa o.oo 2 x S

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