Series builder: what stays the same, what changes?

1. Choose a family

2. Grow the chain one CH₂ at a time

Predict the next member:

3. The series so far

Member	Formula	Molar mass (u)	Change	Boiling point (°C)

Boiling points at 1 atm (CRC Handbook), straight-chain members. Molar masses with C = 12, H = 1, O = 16.

4. Same series or not?

A homologous series: the same functional group, the same general formula, and each member differing from the next by –CH₂– (14 u). Chemical properties are similar; physical properties such as boiling point change gradually.