what is the molecular formula of a compound which has an empirical formula CH2 and a relative mass of 70?

C5H10

May x be the factor to finding the common factor of the formula:

Mr of CH2: 12+2=14
x(14)= 70
x= 5

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later