Problem: Methyl isocyanate, CH3NCO, was made infamous in 1984 when an accidental leakage of this compound from a storage tank in Bhopal, India, resulted in the deaths of about 3,800 people and severe and lasting injury to many thousands more.Draw a Lewis structure for methyl isocyanate.

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In this problem, we are being asked to draw a Lewis structure for CH3NCO. We first need to determine the total number of valence electrons present in the molecule:



            Group            Valence Electrons

C           4A                    2 × 4 e = 8 e

H           1A                    3 × 1 e3 e

N           5A                    1 × 5 e = 5 e

O           6A                    1 × 6 e = 6 e

                           Total:  22 valence e


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Problem Details

Methyl isocyanate, CH3NCO, was made infamous in 1984 when an accidental leakage of this compound from a storage tank in Bhopal, India, resulted in the deaths of about 3,800 people and severe and lasting injury to many thousands more.

Draw a Lewis structure for methyl isocyanate.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Lewis Dot Structure concept. You can view video lessons to learn Lewis Dot Structure. Or if you need more Lewis Dot Structure practice, you can also practice Lewis Dot Structure practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Pikelny's class at CSULA.