For the aqueous reaction A(aq) ⇌ B(aq) at 298 K, the standard Gibbs free-energy change is ΔG° = −3.50 kJ mol⁻¹. If [A] is fixed at 0.10 M, determine the maximum concentration of B (in mol L⁻¹) for which the forward reaction remains thermodynamically favored (ΔG < 0) at this temperature.