Question

Calculate the DU for CH, BO Solution Br counts as an H and can be ignored, so calculate as though the formula were CH. DU = (28) + 2 - 14 = 2. PROBLEM 2.9 Calculate the DU for these formulas and draw two constitutional isomers for cach: a) CH0 b) CHN c) CHF d) CHACIN ) CH.NO Due next Class PROBLEM 2.10 Determine the DU for each of these structures: OCH.CH b) N

Answer 1

2.9) DU = 1/2 [2C+2+N-H-X]

a) C10H20O

DU = 1/2 [2×10 + 2-20] = 1

Structure are :

HHHH I-U I-U H-C- C= C-C-C— C— C-C-O-H H-C-H HMH-C-HHH I-U C-C - I tonellol, C10H200 - II Oo CamScanner

b) C6H9N

DU = 1/2 [2×6 + 2 + 1 - 9] = 3

Structure are :

ZI SO

EN

c) C7H14F2

DU = 1/2 [2×7 + 2 - 14 -2] = 0

Structure are :

CSS

Ies Scanned

d) C6H8ClN

DU = 1/2 [2×6 + 2 +1-1-8] = 3

Structure are :

Ies Scanned

Hн ICS Scannod with

e) C9H15NO

DU = 1/2 [2×9 + 2 - 1 -15] = 2

Structure are :

cs Scanner

cs Car