Question

a) H2SO4(l)

Review Problem 6.091 Enter the thermochemical equations, including values of AH° in kilojoules per mole (from the table below) for the formation of each of the following compounds from their elements, with everything in standard states. Include physical states in your answer. Use minimal integer numbers for coefficient input. Standard Enthalpies of Formation of Typical Substances AH (KI mot-1) AHi(I mol-1) AH (KJ mot-1) AH (KI mol-) Substance Substance Substance Substance NO(g) 90.37 Ag) AgBr AgC Н.О,(0 CH) -84.667 -187.6 NO (g) N,0(g) NO) HBrg) -277.63 -36 -100.4 Сноно 33.8 НСK ) Ca -127.0 -92.30 0 81.57 9.67 26.6 CaBr2) -682.8 AlG) 0 НI) HNOs( NOs() Al,O, -1669.8 CaCOs) CaCl( -173.2 11 -1207 Na NaHCOs HSO) CU) (graphite) 10 0 -811.32 -795.0 CaO CO(g) НCНО,0 Hg) Hg) -487.0 -635.5 -110.5 -947.7 C) CH(g) -393.5 Cа(ОН),0) Na,COs) 0 -986.59 -1131 CaSO CasOHO CaSO 2H,O) Cl2(g) 60.84 NaCl -1432.7 -74.848 -411.0 CH,ag) NaOH Na,SO O2(g) 0 -426.8 -1575.2 -82.0 КO CHl) 14.2 0 -2021.1 -1384.5 Оно'но CONH (urea) КСК) -238.6 -435.89 0 KSO N(g) -333.19 -1433.7 Fe(s) Pb(s) 0 0 CONH)(a) 0 -391.2 Fe,Os) РЬО() -822.2 -219.2 CH) CH) 226.75 NH(g) NHa -46.19 Н.() H2O(g) 0 SU) 52.284 -315.4 -241.8 -296.9 so, Но -285.9 -395.2

b) CaSo4*2H20

c) Na2SO4(s)

Answer 1

a7 Hz Cg) + SCS) + 2029) -> H2SO4C4) Hy SHE W550 = - 814 kg/mol 1 - 814 n cacs) + Scs) +30,99) + 2H2O Set c as04. 2H20 OH7 casoq. 24,0 = -2021.1 kg/mol. 2 Nacs) + SCs) + 20.699-Na, 50465) OHj Na,so, - - 1384.5. Kgmol