Compound D is known to contain only the elements hydrogen, carbon, chlorine and nitrogen. When 1.00gram of compound D is dissolved in the water and allowed to react with excess AgNo3, all of the chlorine in Compound D precipitates as silver chloride (AgCl) and 1.95 g AgCl is collected. When 1.00 gram of Compound D is totally combusted, 0.735 g H2O and 0.900g CO2 are collected. Calculate the complete empirical formula of compound D.