Are the isomers of the substance depicted by the following structural formulas? a) CH3-CH2-CH3 CH3-CH

Are the isomers of the substance depicted by the following structural formulas? a) CH3-CH2-CH3 CH3-CH (down arrow CH3) -CH3 b) CH3-CH2-CH2-OH CH-O-CH2-CH3

CH3-CH2-CH3 – propane – C3H8

CH3-CH (CH3) -CH3 – methylpropane – C4H10

Isomers are substances that are the same in atomic composition and molecular weight, but differ in the structure or arrangement of atoms in space and, as a result, in properties. This phenomenon is divided into the following categories: isomerism of the carbon skeleton, the position of the multiple bond, the position of the functional group; interclass isomerism spatial isomerism, which is subdivided into rotational, geometric, stereochemical cyclic compounds, optical. Isomerism of a given substance is represented by a compound that reflects interclass isomerism

As you can see, these two substances differ in atomic composition and molecular weight.

CH3-CH2-CH2-OH – pentanol – C3H8O

CH3-O-CH2-CH3 – methyl ethyl ether – C3H8O

These substances are isomers. Isomerism type: interclass isomerism.