finding conc. from Kc

[claire ikemiya_2I]

So this is a problem from UA Matthew Tran's week 1 worksheet. The number in red is the answer and I can't figure out what is wrong with my work. Any sugguestions?

[Joseph Hsing 2C]

Only thing you missed was to balance the equation, put a 3 in front of HClO. Your final answer would then be missing a cube root.

[Irene Chang 2F]

Always remember to check if the equation is balanced first! Your equation should be NCl3 + 3H2O <--> NH3 + 3HClO. Then the Kc constant would be: ([NH3]([HClO]^3))/([NCl]([H2O]^3)).

[Bella Bursulaya 3G]

Happened to me as well. Make sure at the beginning of any problem to check if the equation is balanced or not. Even if there are already numbers in front of the molecules, this may be a trick so always double check!