The following 0.1 M aqueous solutions are arranged in order of increasing pH,with the highest pH on the far right. Which one of the following 0.10 M aqueous solutions should be placed in the empty box? A)NaI B)HCOOH C)C₆H₅NH₂ D)CH₃NH₃Cl E)NaClO

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Quizplus · Accepted Answer

HCOOH is a weak acid and will ionize to give H+ and HCOO-. Therefore, it will have a lower pH than the other options listed. NaI and NaClO are salts of strong acids and strong bases, so their solutions will be neutral. C₆H₅NH₂ and CH₃NH₃Cl are salts of weak bases and strong acids, so they will have a slightly acidic pH.

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