Which of the following aqueous solutions will have the highest pH? For NH₃, K_b = 1.8 × 10^-5; for C₂H₃O₂^-, K_b = 5.6 × 10^-10. A) 2.0 M NH₃ B) 2.0 M HCl C) 2.0 M NaOH D) 2.0 M HC₂H₃O₂ E) All these solutions will have the same pH.

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Quizplus · Accepted Answer

A higher concentration of hydroxide ions (OH-) will lead to a higher pH. NaOH is a strong base that dissociates completely in water, producing a high concentration of OH- ions, therefore having the highest pH compared to the other options. The other solutions either contain acidic species (such as HCl) or weak bases/acidic species that will not dissociate completely (such as NH4+ in NH₃ or HCO3- in HC₂H₃O₂).

Which of the Following Aqueous Solutions Will Have the Highest