1. A Review of General Chemistry

How many hydrogens are attached to each of the indicated carbons in morphine?

How many hydrogens would you expect a 24-carbon compound from each of the following molecular classes to have?

(a) Alkane

For each of the following line-angle drawings,

(i) give the number of carbons,

(ii) label the carbons,

(iii) tell how many hydrogens are on each carbon, and

(iv) draw the hybrid structural formula.

(c)

For each of the following line-angle drawings, 

(i) give the number of carbons, 

(ii) label the carbons, 

(iii) tell how many hydrogens are on each carbon, and 

(iv) draw the hybrid structural formula.

(d)

Given the line-angle drawings shown, answer the following questions:

(i) How many carbons are in each molecule?

(ii) How many hydrogens are at the circled carbon?

(iii) Is the indicated (→) carbon or 1° , 2°, 3°, or 4°?

(c)

For each of the following line-angle drawings, 

(i) give the number of carbons, 

(ii) label the carbons, 

(iii) tell how many hydrogens are on each carbon, and 

(iv) draw the hybrid structural formula.

(b)

Draw the structure of a hydrocarbon that has six carbon atoms and

a. three vinylic hydrogens and two allylic hydrogens.

b. three vinylic hydrogens and one allylic hydrogen.

c. three vinylic hydrogens and no allylic hydrogens.

Convert the models in Problem 20 to skeletal structures.

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Convert the perspective formula to a skeletal structure.

Give the molecular formula of each compound shown

(d)

(e)

(f)

Give the molecular formula of each compound shown

(g)

(h)

For each of the following molecules, draw one 3-D representation at only the necessary atoms (that is, the ones with four different atoms/groups attached).

(c)

Give Lewis structures corresponding to the following line–angle structures. Give the molecular formula for each structure.

(c)

(d)