Consider the following data on some weak acids and weak bases. Use this data to

Question

Consider the following data on some weak acids and weak bases. Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on.

r the following data on some weak acids and weak bases: acid base k, ala 45-10-4| acetic acid 1 HCH,CO2| 1.8 × 10-5 |methylamine|CH3NH2|4.4 x 10 | C,H,N 1.7x10-91 pyridine Use this data to rank the follo the solution that will have the next lowest pH, and so on wing solutions in order of increasing pH. In other words, select a I' next to the solution that will have the lowest pH, a 2 next to pH 0.1 M KI 0.1 M CH NH,Br 0.1 M NaNo: chopse ane

Explanation / Answer

Greater the Ka value , stronger the acidic character and lower will be the PH.

Greater the Kb value stronger the basic character and highe will be the PH .

Because PH is inversely proportional to Ka and directly proportional to Kb.

So order of increasing PH will be:

HNO2>HCH3CO2<C5H5N<CH3NH2

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