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so for this question It will look like this [2Ag-][SO4-]=1.4x10^-5 which I again let Ag and SO4 be represented by x so [2x]^2[x]=1.4x10^-5 so 4x^3=1.4x10^-5 I then solve for x which is 1.5x10^-2
x represents the molar solubility which is 1.5x10^-2M
For this its (3.2)^2/(1.5)(1.2)^2 = 4.74>3 and 3 is representative of Kp so 4.74=Q ans Q>K so that means the reaction must proceed to the left/reverse.
So C is the answer?
Well, I'm not completely sure, but I am giving it a shot. It is not b or c though.
So which is the most logical between A and D?
My guess is this you take the Kc=56 and you double it as that is done in the second reaction and then you do this 1/112=.0089 which is an answer being 8.9x10^-3 which is D.