Consider the reaction H2(g) + I2(g) ---- 2HI(g). What is the reaction quotient, Q, for this system when [H2] = 0.100 M, [I2] = 0.200 M, and [HI] = 3.50 M?

Question

Consider the reaction H2(g) + I2(g) ----  2HI(g). What is the reaction quotient, Q, for this system when [H2] = 0.100 M, [I2] = 0.200 M, and [HI] = 3.50 M?

The choices are;
87.5
175
350
613

I dont believe it is 87.5 or 613

KAH · Accepted Answer

it is 613

DrBob222 · Answer

H2(g) + I2(g) ---- 2HI(g). Q = (HI)^2/(H2)(I2) = (3.5)(3.5)/(0.1)(0.2) I think your guess is wrong. Why did you guess. Plug the numbers into Q and calculate.

KAH · Answer

I wasnt guessing I did the math incorrect

DrBob222 · Answer

So you calculated the wrong answer twice.