00:01
Hi everyone, this is ricky, and today we're working on problem 39 from chapter 22.
00:06
And we're going to be determining if the isomers of cr and h3 -2 oxalate to minus are optically active.
00:16
And just as a refresher, isomers are optically active if they are non -superimposable onto one another.
00:30
And more specifically mirror images are non -superimposable.
00:50
All right, so first let's draw the chromium nh3, nh3, oxalate, oxalate.
01:16
And this is the cis isomer.
01:22
This is a square planar ion and so.
01:35
And it also follows the m -a -2 -b -2 general formula, meaning it has both cis and trans -isomer.
01:48
And let's draw out our trans -isomer, crnh -3, ox, nh3.
02:02
All right.
02:04
Now let's reflect these.
02:07
And determine if they're superimposable on one another...