[URGENT!] - Equilibrium Problem
Consider the following reaction:
4 A + 2 B ⇌ 2 C + D (all gases at STP)
Initially, the reaction system is at equilibrium, with [A] = [B] = 2.60 M, and [C] = [D] = 3.10 M, making K = 0.0964. The reaction takes place in a 5.00-liter container. Moles of B are removed until the new equilibrium concentration of C is 2.70. How many moles of B were removed?