A United Nations toxicologist studying the properties of mustard gas, S(CH2CH2Cl)2, a blistering agent used in warfare, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 ° C):    SCl2(g) + 2 C2H4(g) ⇌ S(CH2CH2Cl)2 (g) At equilibrium,[S( CH2CH2Cl)2] = 0.350 M. Calculate Kp. Kp =

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