Structural formula expanded

Write an expanded structural formula with a line for each bond (like the formulas on p. 32) for each of the following substances which are represented by a condensed formula ... 

Ans. Each of these structural formulas represents the same compound—the same compound as in the Problem 11.4. The three formulas differ in the extent to which various bonds in the molecule are drawn. Formula III is referred to as a full or expanded structural formula in contrast to more condensed structural formulas such as formulas I and II. Formulas I and II are condensed to different degrees. Formula I shows no bonds while formula II shows all carbon-carbon bonds but no carbon-hydrogen bonds. 

All of this is confusing to the beginning student who often asks, Why don t chemists always use expanded structural formulas The answer is that your textbooks would contain many more pages and be much more expensive. Formulas I and II in Problem 11.5 are shorthand versions of formula III. Once you understand the valence requirements of various atoms, you will read all three formulas as representing the same molecule. Depending on the text you use, you may find other shorthand versions of the same molecule ... 

Write out the expanded structural formula, if it is not given in the expanded form. 

Write condensed or expanded structural formulas for compounds. (Section 1.4)... 

Write condensed or expanded structural formulas for compounds. 

In Table 1.2, we have used both expanded and condensed structural formulas for the compounds. Expanded structural formulas show all covalent bonds, whereas condensed structural formulas show only specific bonds. You should become familiar with both types, but especially with condensed formulas because they will be used often. 

Class Functional Group Example of Expanded Structural Formula Example of Condensed Structural Formula Common Name... 

Identify each of the following as a condensed structural formula, expanded structural formula, or molecular formula ... 

The structural formula can be shown in a number of different ways. One is called the expanded structural formula, which basically shows each covalent... 

In methane, CH4, the covalent bonds from carbon to hydrogen are directed to the comers of a tetrahedron. This gives the lowest amount of repulsion between the H atoms. This three-dimensional structure of methane can be illustrated as a ball-and-stick model. The expanded structural formula is a two-dimensional representation in which the bonds from carbon to each hydrogen atom are shown. 

Two-dimensional and three-dimensional representations of methane, CH4 (a) electron-dot formula, (b) expanded structural formula, and (c) ball-and-stick model. 

Draw the expanded structural formula, condensed stractural formula, aud skeletal formula for butane. 

The carbon atom in the simplest organic compound, methane (CH4), has four valence electrons that are shared with four hydrogen atoms to form an octet. In the electron-dot formula, four single bonds represent the shared pairs of electrons. An expanded structural formula is drawn to show the bonds between the atoms. 

From the ball-and-stick model of hexane, we can write a molecular formula, C6H14, and draw its expanded structural formula, condensed structural formula, and skeletal formula. 

In the expanded structural formula, a separate line is drawn for every bonded atom. 

Hydrocarbons are organic compounds that consist of only carbon and hydrogen. In the simplest hydrocarbon, methane (CHt), the carbon atom forms an octet by sharing its four valence electrons with four hydrogen atoms. In organic molecules, every carbon atom has four bonds. A hydrocarbon is referred to as a saturated hydrocarbon when all the bonds in the molecule are single bonds. We can draw an expanded structural formula for a compound by showing all the bonds between atoms. 

A molecule of pentane, C5H12, has five carbon atoms in a continuous chain. In the expanded structural formula, the five carbon atoms are connected to each other and to hydrogen atoms by single bonds to give each carbon atom a total of four bonds. In the... 

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