What is the #pH# of a solution of #HCl# whose concentration is #1.86xx10^-5*mol*L^-1#?

1 Answer
anor277
Nov 1, 2017

You got a solution whose #pH=4.73#. Neither the molarity, nor the #pH# changes if the concentration remains the same...

Explanation:

Any volume you take of this solution retains this #pH#. Of course a SMALLER volume of this buffer will not have a large buffer capacity, but this is immaterial....And remember molarity is #"moles of solute"/"volume of solvent"#...this is a property of the bulk solution, not just its volume....i.e. units of #"moles of solute per litre of solution...."#

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