Contents
What is a condensed chemical formula?
The condensed formula of a molecule is the formula where the symbols of atoms are listed in order as they appear in the molecule’s structure with bond dashes omitted or limited. A true condensed formula can be written on a single line without any branching above or below it.
How do you write a complete structural formula?
In condensed structural formulas the bonds to each carbon are omitted, but each distinct structural unit (group) is written with subscript numbers designating multiple substituents, including the hydrogens. Shorthand (line) formulas omit the symbols for carbon and hydrogen entirely.
What is a structural formula example?
A formula which illustrates the arrangement of the atoms and bonds in a molecule. For example, the structural formula of aspirin is CH3 COOC6 H4 COOH, indicating that it consists of an acetyl group (CH3 COO) attached to the carboxylic acid (COOH) of a phenyl group (C6 H4 ). …
What is the difference between condensed formula and molecular formula?
A molecular formula tells only the numbers of atoms of each element in a molecule of the compound. A condensed structure shows all atoms, but it omits the vertical bonds and most or all of the horizontal single bonds.
What is full structural formula?
Structural formulas identify the location of chemical bonds between the atoms of a molecule. A structural formula consists of symbols for the atoms connected by short lines that represent chemical bonds—one, two, or three lines standing for single, double, or triple bonds, respectively.
What are the rules for writing condensed structural formulas?
Write the atoms of the longest chain horizontally in the order in which they are connected. You may combine repeating horizontal units in subscripted parentheses. Write all of the ligands on an atom immediately to its right, with subscripts for multiples. Exception: Write ligands on the leftmost atom immediately to its left.
How to draw the condensed structure of a molecule?
Step 3: Identify groups of atoms along the carbon backbone in the 2-dimensional structural formula This molecule contains three groups along its carbon backbone: CH3, C and CH3 Step 4: Re-draw the formula by replacing the identified groups of atoms in the 2-dimensional structural formula with their condensed structure.
How to write condensed formula for line angle?
Line-angle formulas imply a carbon atom at the corners and ends of lines. Each carbon atom is understood to be attached to enough hydrogen atoms to give each carbon atom four bonds. 1. Write the condensed formula for each Lewis structure. A. B.
How are hydrogens written in a condensed formula?
** In condensed formulas all of the hydrogen atoms that are attached to a particular carbon are usually written immediately after the carbon. ** In fully condensed formulas, all of the atoms that are attached to the carbon are usually written immediately after that carbon, listing hydrogens first.