This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
a) (i)* The student's answer is correct. Size of particles (or molecular mass) (ii)* The student's answer is correct. Temperature b) The white cloud is formed nearer to the hydrochloric acid (HCl) because HCl gas has a higher molecular mass (36 g/mol) compared to ammonia (NH_3) gas (17 g/mol). According to Graham's Law of Diffusion, gases with lower molecular masses diffuse faster. Therefore, NH_3 travels a greater distance in the same amount of time, meeting the slower-diffusing HCl closer to the HCl source. The student's answer is incorrect. c) No, the location of the white cloud will not be significantly affected. The rate of diffusion of a gas is primarily determined by its molecular mass and the temperature. Doubling the amount of hydrochloric acid on the cotton wool does not change its molecular mass or the temperature of the experiment. While it might increase the intensity of the white cloud or the duration of the reaction, the relative rates at which NH_3 and HCl diffuse, and thus the point where they meet, will remain essentially the same. The student's answer is incorrect. 3 done, 2 left today. You're making progress.