Above are the structures for benzonitrile, nicotine and caffeine. Each atom obey

Question

Above are the structures for benzonitrile, nicotine and caffeine. Each atom obeys the octet rule (duet for hydrogen) and no atom possesses a formal charge.

A) What is the total number of hydrogens in the nicotine molecule?

B) What is the total number of lone pairs in the caffeine molecule?

C) What is the molecular formula for caffeine?

D) In the nictoine molecule the approximate angle about the nitrogen boned to a methyl group (CH3-) is: 90 degrees or 109 degrees or 120 degrees or 180 degrees

E) In the benzonitrile molecule there are how many pi and sigma bonds?

Above are the structures for benzonitrile, nicotine and caffeine. Each atom obeys the octet rule (duet for hydrogen) and no atom possesses a formal charge. A) What is the total number of hydrogens in the nicotine molecule? B) What is the total number of lone pairs in the caffeine molecule? C) What is the molecular formula for caffeine? D) In the nictoine molecule the approximate angle about the nitrogen boned to a methyl group (CH3-) is: 90 degrees or 109 degrees or 120 degrees or 180 degrees E) In the benzonitrile molecule there are how many pi and sigma bonds?

Explanation / Answer

A) What is the total number of hydrogens in the nicotine molecule? 14 B) What is the total number of lone pairs in the caffeine molecule? 8 C) What is the molecular formula for caffeine? C7H4O2N4 D) In the nictoine molecule the approximate angle about the nitrogen boned to a methyl group (CH3-) is: 90 degrees or 109 degrees or 120 degrees or 180 degrees 109 degrees E) In the benzonitrile molecule there are how many pi and sigma bonds? pi = 5 sigma = 13

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