Please show full work and reasoning, thanks. Lewis Diagram Representation of Bon

Question

Please show full work and reasoning, thanks.

Lewis Diagram Representation of Bonding in an Organic Molecule The following organic compound, or a derivative thereof, is important in certain metabolic processes OH 0 HO-C OH isocitric acid Complete the Lewis diagram before answering the following questions. How many valence electrons are there in a molecule of isocitric acid? 74 How many pi bonds are there in a molecule of isocitric acid? 3 How many sigma bonds are there in a molecule of isocitric acid? 21

Explanation / Answer

a)

valence electrons:

Total O = 7, e- = 7*6 = 42

Total C = 6, e- = 6*4 = 24

Total H = 8, e- = 8*1 = 8

e- = 42+24 +8 = 74 e-

b)

pi bonds --> doubloe bonds present

only ---> C=O are present, whcih are 3 double bonds, therefore only 3 pi bonds

c)

sigma bonds --> single bonds

C-H = 3

O-H groups = 5

C-C bonds = 5

C=O bonds = 3

C-O bonds = 5

Add all = 5+5+3+5+3 = 21

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