00:01
Okay, for my first question, we're told that we have a 500 -gram milligram acetaminophen tablet.
00:28
We extract from this tablet 425 milligrams of acetaminophen.
00:43
What is the percent extraction yield? and i'm just going to go 425 milligrams divided by 500 milligrams times 100.
01:03
And i'll go 85 percent yield.
01:20
And i want to make a note that 500 milligrams has only one significant figure.
01:33
Utilizing that, it would be 90 percent, which i hate using.
01:44
So now we're told for our second problem, if we start with one gram, find the theoretical yield of this.
02:13
I need to go find an equation for this because i don't know it.
02:31
Theoretical yield.
02:32
Pretty sure i'm not going to find this too easily.
02:58
Let me type in balanced p -a -m -i -n -o -p -h -e -n -o -l equals a -c -e -t.
03:31
Okay, so i've got it.
03:32
It is c6h7no3 plus c4h2o3 yields c8h9no2 plus c2h4o2.
04:04
And this is the para -aminophenol and this is the acetaminophen.
04:12
Okay, so i've got one gram of c6h7no3.
04:26
I don't think that's right.
04:53
I think this will be two.
05:12
Let's try that.
05:48
C6h7no, c4h6o3, and then i've got two c8h9no2 and then water right here...