Question

Give the empirical formula of each of the following compounds if a sample contains the following quantities of each element. (Type your answer using the format CO2 for CO2.)

(a) 0.0120 mol nitrogen and 0.0230 mol oxygen



(b) 20.7 g C, 3.5 g H, and 14.0 g O



(c) 63.7% nitrogen and 36.3% oxygen by mass