Question

In an experiment in the lab, a white solid called ammonium chloride (NH4Cl) is heated and decomposes to form two gases, hydrogen chloride (one hydrogen and one chlorine) and ammonia (one nitrogen and three hydrogens). The reaction is conducted in a closed flask to capture the gases that are produced. Observations from the experiment are recorded below: . . OBSERVATIONS Mass of flask 132.6 g Mass of NH4Cl and flask 153.8 g . Observations of NH4CI: It is a crystalline white solid (looks like salt) with a faint odor. Observations upon heating: There is some bubbling. The crystalline solid seems to disappear. The flask looks empty in the end (but when the cap is removed during clean-up, a strong odor is released). . On a scratch paper, write the reaction equation for the reaction described in the experiment above. Balance it. Use your balanced equation to answer the following questions in the numbered blanks after all the questions. 1. How many grams of NH4Cl were put in the flask at the beginning of the experiment? 2. What will be the final mass after the reaction has occurred of the flask