APFIVE Calculating the Acid Dissociation Constant Ka
A student is studying the dissociation of a weak acid in water and wants to calculate the acid dissociation constant (Ka). If the concentration of hydrogen ions is 0.01 M, the concentration of the conjugate base is 0.01 M, and the concentration of the undissociated acid is 0.98 M, what is the Ka?
A
1.02x10^-4
B
9.8x10^-2
C
9.8x10^-3
D
1.02x10^-2
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