If 2.50 grams of ethane is allowed to react with 5.00 grams of oxygen how many grams of water would be expected?

I think it’s 2.50 x 5.00 = 12.5

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.