00:01
In this problem, we're told that in equilibrium, the concentrations were found as follows.
00:06
Our first order of business will be to find keq.
00:11
Our equilibrium constant will be, according to our balanced chemical equation, no squared over n2, and these are all concentrations.
00:24
So our keq will be equal to 0 .400 squared over 0 .100 times 0 .100.
00:46
Okay, 0 .4 x squared divided by 0 .1 divided by 0 .1.
00:54
And this will be 16.
00:56
Okay, so now we have m2 plus o2 yields 2no, and we know our initial concentrations are 0 .100, 0 .100, and 0 .400.
01:35
And it says we add bringing the concentration of this to 0 .700.
01:52
So we add no bringing the final concentration to 0 .7.
02:00
So we're going to start with this much and we're adding.
02:09
And then it looks like they want us to reestablish equilibrium.
02:14
So we're adding, i think we're doing this.
02:20
We're going to bring this up to 0 .700, i think.
02:31
No, this won't be at equilibrium anymore.
02:36
It's going to decrease by 2x, increase by x, i think.
03:06
Let me read this again...