which of the following pairs does not share the same empirical formula?
a) C2H6 & C4H12
b) C3H6O3 & CH20
C) C3H80 & CH20
D)C2H8 & CH4

Question

which of the following pairs does not share the same empirical formula?
a) C2H6 & C4H12
b) C3H6O3 & CH20
C) C3H80 & CH20
D)C2H8 & CH4

preetha · Answer

Kelley what is your understanding of Empirical formula?

anonymous · Answer

i dont really get it

preetha · Answer

Kelley, Empirical formula is derived from experiments (=empirical).  They are the smallest simplest ratio of elements in a compound.  So If you have C2H4 the empirical formula is CH2.  or CH2 x 2 = C2H4.  Write the empirical formulae of each of the molecules in the pair:  C2H6 empirical formula is CH3, and C4H12, EF is also CH3.  Got it?  
Next one?

anonymous · Answer

Yes i have 2 more questions i need help with :)

anonymous · Answer

A compound made of two elements irdium(Ir) & Oxygen (O), was produced in a lab by heating iridium while exposed to air. the following data was collected
mass of crucible: 38.26
mass of crucible and iridum: 39.52
mass of crucible and iridum oxide: 39.73

anonymous · Answer

show or explian calculations as you determine the empirical formula of the compound