What is the concentration of Br2 when the concentration of NOBr2 at t=0 is 0.86 and t=22 is 0.46

How many significant figures are in the measurement 0.03050

Which is greater in positive acceleration, initial or final velocity

2.50 mol nocl was placed in a 2.50 l reaction vessel at 400ºc. after equilibrium was established, it was found that 28% of the nocl had dissociated according to the equation 2nocl(g) picture 2no(g) + cl2(g). calculate the equilibrium constant, kc, for the reaction.