Question

2. Chlorine gas can be prepared from treating hydrochloric acid with fluorine gas according to the following equation: F2+2 HClea) a) What pressure of Cl at 39°C can be produced from the complete reaction of 2.226 g of F, gas and 75.0 mL of 1.50 M HCI in a 3.00 L container ? (12 points; note you can neglect the volume occupied by aqueous acid; HF is a weak acid) b) Would the initial pressure of fluorine gas be greater than, lesser than or equal to the pressure you calculated in part a? You do not have to do a caleulation but you must provide a rationale for your prediction. (6 points) c) How much heat would be given off or absorbed from the reaction described in part a? (8 Cho + 2 HF points) d) Categorized this reaction as a precipitation reaction, acid-base reaction or oxidation- reduction reaction and provide the full and net ionic equation. (6 points)

please help

Answer 1

20 2.2269 F2 =1252262) mol = 0.0586. mol. 75 ml of 1.50(M) HCP = 75x1950 mol HCl = 0,1125 mol HCl F2 (9) + 2 Hepcaq) + Cl269) +2HF (29) 1 mol. s 2 mol. l moti 2 mol: HCP = I mot F2. 10.1125 moli Hel = 4x 0.1125. mol. F2 = 0.05625 mol F2, But Fz gas taken = 0.0586 mol. Hence, Here's limiting reagent here and 0.05625 mol F2 gas has reacted with Hel. .. No. of moles of el gas produced = no. of moles of F2 gas reacted . ornelo 0.05625 mod.' .: Pece = melet RT) = (0.05625 x 0.082x (894273)a tim = 0.4797 atuhi c. The foressure of elz gas formed = 0.4797 atm (ans) © Initial pressure of Fz gas Per = MEXRI) - 00586X0·082X(39423 3 = 0.4997. atm L PE) Pela (Ans).

2 - © Ahtoxn = Sah¢ [41269)] + 2x4H] [HF (29)]}-{{CF3LQ)] +2x44f [Hica) = [ {0 +2(-320-1)}-{ 0+26–166.994]}]«J = - 306.212 KJ For 2 moles Hel heat released = 306.212 KULD 199 011125 99 HCL 29 99 =1306:212 X0:1125)KI = 17:224 KJ 1. Heat released in the reaction is 17.224 KJ (Ans) D 2(g)+ 2H+ ellas escght 2 HB (09). - Reduction . Jonidation I The reaction is oxidation-reduction reaction. Iz is reduced - HF and He is one dessed to ele F219)+ 24722> 2F1@q)+ Cl2(9)