please help within five minutes
Chemistry

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Let UNITs guide you; always USE THEM in your calculation to prevent errors
Firstly, the eqn: I (aq) + I2 (aq) > I3 (aq); K = 710 L/mol
K = [i3]/([i2][i])
5.00E2 mol I2 +1.00 liters 5.00E1 M KI
[KI]init = 5.00E1 moles/liter
[I2]init = 5.00E2 moles/liter
[KI]eq = 5.00E1 moles/liter  x moles/liter
[I2]eq = 5.00E2 moles/liter  x moles/liter
[I3]eq = x moles/liter
K= 710 liters/mole = (x moles/liter) / [5.00E1  x moles/liter)(5.00E2  x moles/liter)]
SOLVE for x
[I3]/[I2] = x moles I3 / (5.00E2  x moles/liter) I2 = ??
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