Determine the ph of a solution prepared by mixing 50 ml hclo4 with 100 ml h2o?

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anor277 Share
Feb 9, 2018

Answer:

What concentration was the perchloric acid?

Explanation:

Perchloric acid is a STRONG acid....that completely dissociates to give stoichiometric hydrogen ion...

#HClO_4(aq) + H_2O(l) rarr H_3O^+ + ClO_4^(-)#

And if we had #1.00*mol*L^-1# perchloric acid the concentration would be...

#(50*mLxx10^-3*L*mL^-1xx1.00*mol*L^-1)/(150*mLxx10^-3*L*mL^-1)=0.33*mol*L^-1#

And now #pH=-log_10[H_3O^+]-=-log_10(0.333)=0.48#.

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