First slide

Ionization constants of weak acids, PH of weak acids

Question

For a strong acid,

Easy

A

K_a is very high
B

pK_a is very low
C

$α$ is very high
D

All the above

Solution

A strong acid will furnish greater number of H⁺ ions and so degree of dissociation is high. HA $⇌$ H⁺ + A^-the extent of equilibrium will be high. The value of K_a will be high and so $P^{K_{a}}$ will be low.

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