Chapter 1: Q.1-1-24b (page 27)
What are likely formulas for the following molecules?
(a) NH?OH (b) AlCl?(c) CF2Cl(d)CHO?
(b)
Answer
The chemical formulais AlCl3.
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Convert the following line-bond structures into molecular formulas
(a)
Aspirin (acetyl salicylic acid)
(b)
Vitamin C (ascorbic acid)
(c)
Nicotine
(d)
Glucose
There are two different substances with the formula C2H6O. Draw both, and tell how they differ.
What kind of hybridization do you expect for each carbon atom in the following molecules?
(a)
Procaine
Quetiapine(Seroquel)
(b)
Vitamin C (ascorbic acid)
Divalent carbon species called carbenes are capable of fleeting existence. For example, methylene, :CH2, is the simplest carbene. The two unshared electrons in methylene can be either paired in a single orbital or unpaired in different orbitals. Predict the type of hybridization you expect carbon to adopt in singlet (spin-paired) methylene and triplet (spin-unpaired) methylene. Draw a picture of each, and identify the valence orbitals on carbon.
The following molecular model is a representation of para-aminobenzoic acid (PABA), the active ingredient in many sunscreens. Indicate the positions of the multiple bonds, and draw a skeletal structure (gray 5 C, red 5 O, blue 5 N, ivory 5 H).
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