Question

The Ostwald dilution law is expressed as:

• A. $K_a=\frac{c{\alpha }^2}{(1-\alpha )}$
• B. $K_a=\frac{c\alpha }{(1-\alpha )}$
• C. $K_a=\frac{1-\alpha }{c{\alpha }^2}$
• D. $K_a=\frac{c(1-\alpha )}{{\alpha }^2}$

Answer 1

Answer: (A)

Ostwald dilution law is :
$K_a=\frac{C.{\alpha }^2}{(1-\alpha )}$
where : $K_a=$ Dissociation constant
$\alpha =$ degree of dissociation
$C=$ concentration