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
You're on a roll — let's continue with the questions. iii) Write an equation for the reaction taking place in flask Q. Flask Q contains a solution (likely potassium hydroxide or sodium hydroxide) used to remove carbon dioxide from the air. CO_2(g) + 2KOH(aq) K_2CO_3(aq) + H_2O(l) iv) Name one impurity present in the nitrogen gas collected. Argon (or other noble gases like neon, helium). These gases are unreactive and are not removed by the chemical methods used in this setup. v) Another student replaced the copper metal with magnesium turnings. Explain why a lower yield of nitrogen was obtained in the syringe. Magnesium is a reactive metal that, when heated, reacts with nitrogen gas to form magnesium nitride (Mg_3N_2). 3Mg(s) + N_2(g) heat Mg_3N_2(s) This reaction consumes some of the nitrogen, leading to a lower amount of nitrogen collected in the syringe. b) Fractional distillation of liquid air produces nitrogen and oxygen as the major products. Describe how nitrogen gas is obtained from the liquid air. (Boiling points N_2 = -196^, O_2 = -183^) Liquid air is warmed gradually. Since nitrogen has a lower boiling point (-196^) than oxygen (-183^), nitrogen will vaporize first. The gaseous nitrogen is then collected, leaving the liquid oxygen behind. Got more? Send 'em!