Part B Find AH; for BF3 (g) from the given table. Substance AH kJ/mol 565.0 o...
Part A:
Determine ΔH∘f for NO(g)
Part B:
Determine ΔH∘f for BF3(g)
Part C:
Determine ΔH∘f for C6H6(l)
Part D:
Determine ΔH∘f for HF(g)
0 Standard Enthalpies of Formation at 25°C Substance AH; (kJ/mol) B(s) B2O3(s) – 1273.5 BF3(g) -1136.0 C(s, graphite) C(s, diamond) 1.88 C2H2(g) 227.4 C6H6(1) 49.1 HF(9) –273.3 F(g) 79.38 472.7 0 91.3 249.2 N(g) N2(g) NO(g) O(g) O2(g) 03 (9) H(9) H2(g) 142.7 218.0 O
Part A:
Write an equation for the formation of NO(g) from its elements
in their standard states.
Express your answer as a chemical equation. Identify all of the
phases in your answer.
Part B:
Write an equation for the formation of BF3(g) from its elements
in their standard states.
Express your answer as a chemical equation. Identify all of the
phases in your answer.
Part C:
Write an equation for the formation of C6H6(l) from its elements
in their standard...
Review I Constants I Period Part D Find AHo for CACO3 (s) from the given table. AH; kJ/mol Substance O(g) 249.2 O2(s) 0 C(g),grafite 0 C(g), diamond C(g) Ca(g) Ca(s) 1.88 716.7 -403.8 CaCOs(g) -1207.6 Express your answer using one decimal place. VAD ? AHi k.J/mol Request Answer Submit Part E
What is AH°rxn for the following reaction? H3AsO4(aq) + 4H2(g) → AsH3(g) + 4H2O(1) Substance AH°f(kJ/mol) 171.5 AsH3(8) H3ASO4(aq) H2O(1) -904.6 -285.8 O -790.3 kJ/mol O-1018.9 kJ/mol 0 -410.1 kJ/mol O -67.1 kJ/mol 0 -1876.3 kJ/mol
Use the values of AH; to calculate AF® for the following reactions. Substance and State AH(kJ/mol) C2H5OH(1) -278 02(9) CO2(9) -393.5 H2O(9) -242 H2O(1) -286 Ticu (9) -736 TiO2(8) _945 H+ (aq) Cl(aq) -167 NiO(s) -241 Ni(OH)2(s) -538 0 + (g) - (g) + он до ос AH = kJ b. TiCl4 (9) + 2H20(1) + TiO2 (s) + 4HCl(aq) AH° = c. NiO(s) + H2O(l) + Ni(OH)2(s) AH° = kJ
Use the values of AH to calculate AHº for the following reactions. CO2(9) Substance and State AH (kJ/mol) C2H5OH(1) -278 02 (9) -393.5 H2O(9) -242 H2O(1) -286 TiC14(9) -736 TiO2 (s) -945 H+ (aq) ci- (aq) -167 MgO(s) -602 Mg(OH)2(s) -925 + ) — (8) + (8) a. Hoc AH° = DK b. TiCl4(g) + 2H2O(l) + TiO2 (s) + 4HCl(aq) AH° = C kJ c. MgO(s) + H2O(l) + Mg(OH)2(s) AH° = C kJ
Part AH X = 90 kJ , ASrxn = – 149 J/K , T = 293 K Express your answer using three significant figures. 10 AJO O O ? AG = Submit Request Answer Part D AHX = - 90 kJ, A Srxn = 149 J/K, T = 401 K Express your answer using three significant figures. IVO AQ R o o ?
Part A AH = 127 kJ , AS. = – 253 J/K, T =301 K. Express your answer using three significant figures. IVO AO R O ? AS univ= J/K Submit Request Answer Part B AH..= -127 kJ AS. = 253 J/K T=301 K Express your answer using three significant figures. VALD O ?
en 18 What is AH of the following reaction? CO2(g) + 2CH2(g) → C3H5(g) + O2(g) Substance AH,(kJ/mol) CO2(g) -393.5 out of -74.9 CH4(g) CH3(g) -104.7 Select one: a. -573.1 kJ O b. 348.4 kJ O a. 438.6 kJ O d. -648.0 kJ -348.4 kJ
A Review | Constants | Periodic Table You place 1.45 mol of NOCl(g) in a reaction vessel. Equilibrium at constant pressure is established with respect to the decomposition reaction Part C Calculate NOCI(8) = NO(g) + Cl2 (8) AGE and the degree of dissociation of NOCl in the limit that is very small at 350. K and a pressure of 1.50 bar. AH Substance (kJ · mol-1)(298 K) (kJ. mol-1)(298 K) NOCI(g) 51.7 66.1 NO(g) 91.3 87.6 Cl2 (g) 0...