JEE Main Chemistry question

Chemistry Some Basic Concepts of Chemistry JEE Main

At equilibrium, the amount of HI in a 3 litre vessel was 12.8 g. Its equilibrium concentration is:

(A)4.267 M
(B)0.033 MCorrect
(C)0.1 M
(D)0.2 M

Answer: (B)

Solution

mol HI = 12.8/128 = 0.1; conc. = 0.1/3 = 0.033 M.

Question ID VK-136112