For which compound does 0.256 mole weigh 12.8 g? a) \(c_2 h_4 o\) b) \(co_2\) c) \(ch_3 cl\) < --answer d) \(c_2 h_6\) e) none of these can someone tell me why c is the right answer and not e? ,

Number of moles = 
so to calculate molar mass (Molecular weight of compound):
Molecular weight = 
            =  = 50 g / mole
Now we calculate molecular weight of each compound in choices:
a) C₂H₄O = 44
b) CO₂ = 44
c) CH₃Cl = 50.4 ALMOST 50  so this is the correct answer
d) C₂H₆ = 30

Sorry i dont understand the question can you rephase it?

The net force is 100