0.01 moles of a weak acid HA (Ka = 2.0 $\times$ 10$-$6) is dissolved in 1.0 L of 0.1 M HCl solution. The degree of dissociation of HA is __________ $\times$ 10$-$5 (Round off to the Nearest Integer). [Neglect volume change on adding HA. Assume degree of dissociation <<1 ]

Question

0.01 moles of a weak acid HA (K_a = 2.0 $\times$ 10^$-$6) is dissolved in 1.0 L of 0.1 M HCl solution. The degree of dissociation of HA is __________ $\times$ 10^$-$5 (Round off to the Nearest Integer).

[Neglect volume change on adding HA. Assume degree of dissociation <<1 ]

Correct Answer

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