Asked by ben

Degree of unsaturation why is it 5?
C20H32CIN
do i ignore the second C?
because i did
21(2)+2=44 44-32+1-1 / 2 = 6
but i get it right with
20(2)+2=42 42-32-1+1 / 2 = 5
do i always ignore extra C's?
Answered by DrBob222
No, you don't ignore a second C; all should be counted. I don't think that is a C. I think it is a Cl (chlorine).
So you have
20C
32H
1Cl
1N which gives you
[2+2(20)-32+1-1]/2 = 5
Viola!
Answered by ben
you're right! sorry i guess im just tired from over studying that i saw the wrong letter!
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