Determine ranking of pH of solutions

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Determine ranking of pH of solutions

Postby Rachael_1H » Tue Nov 24, 2015 4:33 pm

My question is from the text:

12.67) Rank the following solutions in order of increasing pH:
A) .00005 M HCl
B) .2 M CH3NH3Cl
D) .2 M C6H5NH2
justify your ranking.

How would you determine the ranking? Would you need to calculate the pH of each solution, and if so how would you do that? Please explain the entire problem, step by step.

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Re: Determine ranking of pH of solutions

Postby Chem_Mod » Thu Nov 26, 2015 2:10 am

B) C) D) are weak so you can calculate their pH using a regular ICE box.

A) is a strong acid so its pH is simply -log(0.00005)

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