2NoBr>2NO+Br2 Kc=0.064

Question

At equilibrium a 1.00L flask contains 0.030mole NOBr and 0.030mole of NO.How many moles of Br2 are present.

Answer 1

Kc = (NO)^2 (Br2)/(NOBr)^2
Substitute and solve for the one unknown.