Consider the following data on some weak acids and weak bases: acid base X. name

Question

Consider the following data on some weak acids and weak bases: acid base X. name formula name formula aniline CHAH2 4.3 x100 |methylamine! CH3NH2| 4.4 x 10-4 alo acetic acid |HCH3CO. | 1.8×10-5| Use this data to rank the following solutions in order of increasing pH. In other words, selecta next to the solution that will have the lowest pH, a2 next to the solution that will have the next lowest pH, and so on solution pH choose one choose one Y choose one 0.1 M KF 0.1 M KN03 0.1 MGHsNH3Br ose one

Explanation / Answer

For the given solutions,

C6H5NH3Br is acidic

NaCH3CO2, KF are basic

KNO3 is neutral

So,

ranking of solutions in terms of increasing pH

0.1 M KF = 3

0.1 M KNO3 = 2

0.1 M C6H5NH3Br = 1

0.1 M NaCH3CO2 = 4

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