Question

state the difference between the two succeeding members in terms of molar mass and number of carbon and hydrogen atoms of a homologous series of carbon compounds

Answer 1

In the homologous series of carbon atoms the number of hydrogen atoms increase by two and the number of carbon atoms increase by one. Molar mass can be calculated accordingly.

Answer 2

The difference in molecular mass between two consecutive homologues is 14 amu and each consecutive member differs from the next by one carbon atom and two hydrogen atom.