At 2000°C the equilibrium constant for the reaction 9_1.gif is 9_2.gif If the initial concentration of 9_3.gif is 0.200 M, what are the equilibrium concentrations of 9_4.gif and 9_5.gif?

Explanation:

Hello,

In this case, for the given chemical reaction:

We know the equilibrium constant and equilibrium expression:

That in terms of the reaction extent (ICE procedure) we can write:

In such a way, solving for by using a quadratic equation or solver, we obtain:

Clearly the solution is 0.09899M since the other value will result in a negative equilibrium concentration of NO. In such a way, the equilibrium concentrations of all the species are:

Regards.

i just learnt this recently but i need to look through my notes again

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error