Question

Problem 6: (Mass, Moles, Limiting Reactant, Yields: 15 points) Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide. 4 HCl(aq) + MnO2 (s) → _MnCl(aq) + 2 H2O(l) + Cl2(g) a. Balance the above equation (2.5 points) b. A sample of 39.5 g MnO2 is added to a solution containing 45.9 g HCl. Determine the limiting reactant (4 points). Circle your final answer (0.5 point). MnO2 is limiting HCI is limiting c. What is the theoretical yield of Cl?? (4 points) d. If the yield of the reaction is 71.5%, what is the actual yield of Clz? (3 points) e. What is the mass of the limiting reactant if the reaction were to go to completion (100% yield)? (1 point)

Answer 1

Cl2 + nelz t2 H20 -> 39 J Mo And2 86.93 1-259 mo 36.4S but we have any 2 6.3/ mo 4X129 mo) cl2= 0.31rx 70.9 29.3 9m mana cla 9ctwal ick 71.1 23 15:95 99 qctyal yiele heec tan t - t45