Answered

Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Consider the following polyprotic reactions:
H₃A (aq) + H₂O (l) ⇌ H₃O⁺ (aq) + H₂A (aq)
H₂A⁻ (aq) + H₂O (l) ⇌ H₃O⁺ (aq) + HA²⁻ (aq)
HA²⁻ (aq) + H₂O (l) ⇌ H₃O⁺ (aq) + A³⁻ (aq)
Ka1= 1.4 x 10⁻³
Ka₂= 1.1 x 10⁻⁷
Ka₃ 1.8 x 10⁻¹¹
If the targeted pH for your buffer is 7.5 what are the predominant proton donor and proton acceptor in solution? Below the answer options are in the order of proton donor/proton acceptor.
A) H₃A/H₂A⁻
B) H₂A⁻/HA2-
C) HA²⁻/H₂A⁻
D) H₃A/ A³⁻
E) H₂A⁻/H₃A

Sagot :

Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Get the answers you need at Westonci.ca. Stay informed by returning for our latest expert advice.