Predict the shift in an equilibrium using the idea of reaction quotient (Q) and
ID: 729219 • Letter: P
Question
Predict the shift in an equilibrium using the idea of reaction quotient (Q) and understand how this different from an equilibrium constant.What are the equilibrium concentration of all products and reactants for the following aqueous reaction where the initial concentrations are [HSO4
Explanation / Answer
reaction quotient = 0.06 x0.02 /0.5 = 0.0024 rxn quotient > k equilibrium shifts towards left H2O is liquid , but it is neglected since its conc doesnot effect equilibrium K=[SO4-2][H3O+]/[H2SO4] 0.012 = (0.06+x)(0.02+x) /(0.5-x) -0.012x+0.006 = 0.0012+x^2+0.08x x=3/50 = 0.06 equilibrium conc of HSO4- = 0.5-0.06 = 0.44 equi conc of H3O+ =0.02+0.06=0.08 equi conc of SO4-2 = 0.06+0.06 =0.12