Extremely weird Question (1 Viewer)

yellowsunshine

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what mass of acetic acid will produce 2.5L of solution having a pH of 5.5?

Not sure how to solve this without given Ka
 

jazz519

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You need the Ka to solve that. If it is in a textbook then probably they have some table on a different page that has the Ka
 

jazz519

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It's in a trial paper, I don't have the solutions tho
Yeah I would assume you need Ka. Is that the exact wording of the question? (Maybe the teacher just made a mistake and put a question for an acid and thought it was a strong acid is also another possibility)
 

yellowsunshine

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Yeah I would assume you need Ka. Is that the exact wording of the question? (Maybe the teacher just made a mistake and put a question for an acid and thought it was a strong acid is also another possibility)
Yeah that was the exact wording, if you treat it as a strong acid, none of the answers line up (it's MC). Don't worry, it's probably a mistake.
Thanks for your help
 

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