Question

A well-known toxic substance, composed of carbon, hydrogen, and nitrogen, was located nearby a student lying unconscious in the laboratory. It is suspected that the student may have been poisoned by ingestion. 5.250-g of the suspect's compound was burned in pure oxygen to give 4.083-g of H20 and 14.242-g of CO2. (10 points) a) What is the empirical formula for the substance found near the student if it was the suspected nicotine compound? b) If the substance has a molar mass between 145-165 gmol', what is its molecular formula? Back up your answer with all required calculations.

Answer 1

0 Let be ( Hy Nz Let compound G Hy N₂ +0₂ cot Hot N Mole of co, formed 0.323 6 mples of His formed Ho formed = (4.083 = (4.083) = 02268 14-212 44 Males of Hin Gelly = 045h 0:226862 Now 02236x12 +0636x4 + 4x14 = 5.250 3.8832 +0.4536 + 4 x 10 = 5.250 ( Comes Honda CIN b) was enferical mass- 60 + 7 + 14 = 81 Now 8182-162 gm sono olar forunila = 2(Cs thN) = GHAN