R HCA + H2O = CA- + H3O+
I 12.25/144.21 0 0
C. -x. +x +x
E. 0.0849-x x. x
Ka= x^2/ 0.0849-x
x= 10^-pH= 10^-2.98
Ka= 1.3 x 10^-5
Caprytic acid, also called octanoic acid, is an 8-carbon fatty acid that is used as a sanitizer on dairy equipment that comes in contact with milk.The acid has a molar mass of 144.21 g/mol. An aqueous solution of the sanitizer containing 12.25 g/L has a pH of 2.98. What is the acid-dissociation constant, Ka, for caprytic acid?
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