Which thermochemical equation gives the value of the standard enthalpy of formation for NH4C104(s)? N(g) +...
Which thermochemical equation gives the value of the standard enthalpy of formation for NaN (s)? a(s) + 32 N2(g) → NaN3(s) a(s) +3N(g)-> NaNs(s) Na(s) + 3N2(g)->2NaN3(s) 3N Na(e) + 3/2 N2(g)-> NaN (s) No N3 H.(aq) + OH (aj → H2O) Which of the following reactions does not match the following net ionic equation: HCl(aq) +KOH(aq) CIO4(a)+ CsOH(aq HI(ag)+ NaOH(aq) shoa) OH (a)-,OR
15. Determine the standard enthalpy of formation of Fe2O3(s), 2Fe(s) + 1.5 02 (g) → Fe2O3(s) given the thermochemical equations below. (4 points) AFH° = +160.9 kJ/mol-rxn Fe(s) + 3 H20(8) - Fe(OH)3(s) + 3/2 H (9) H2(g) + 1/2 O2(g) → H2O(6) Fe2O3(s) + 3 H2O(0) - 2 Fe(OH)3(8) A-H° = -285.8 kJ/mol-rxn A,Hº = +288.6 kJ/mol-rxn
Calculate the standard enthalpy of formation of liquid water
(H2O) using the following thermochemical
information:
2 HNO3(l)
N2O5(g) +
H2O(l)
H = +92.0 kJ
2 N2(g) + 5
O2(g) 2 N2O5(g)
H = +59.3 kJ
N2(g) + 3
O2(g) + H2(g) 2 HNO3(l)
H = -348.2 kJ
Calculate the standard enthalpy of formation of liquid water
(H2O) using the following thermochemical
information:
CH4(g) C(s) + 2 H2(g)
H = +74.8 kJ
CO2(g) C(s) + O2(g)
H = +393.5 kJ
CO2(g) + 2 H2O(l) CH4(g) + 2 O2(g)
H = +890.4 kJ
Calculate the standard enthalpy of formation of gaseous methane
(CH4) using the following thermochemical
information:
CO2(g) + 2
H2O(l) CH4(g) + 2 O2(g)
H = +890.4 kJ
CO2(g) C(s) + O2(g)
H = +393.5 kJ
2 H2O(l) 2 H2(g) + O2(g)
H = +571.7 kJ
Calculate the standard enthalpy of formation of gaseous carbon
dioxide (CO2) using the following thermochemical
information:
2 C(s) + H2(g)
C2H2(g)
H = +226.8 kJ
2
C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2O(l)
H = -2599.3 kJ
2 H2O(l) 2 H2(g) + O2(g)
H = +571.7 kJ
H = _______kJ
Calculate the standard enthalpy of formation of liquid water
(H2O) using the following thermochemical
information:
2
B2O3(s) 4 B(s) + 3 O2(g)
H = +2509.1 kJ
B2O3(s)
+ 3 H2O(l) B2H6(g) + 3
O2(g)
H = +2147.5 kJ
2 B(s) + 3 H2(g)
B2H6(g)
H = +35.4 kJ
H = ______ kJ
Calculate the standard enthalpy of formation of gaseous
acetylene (C2H2) using the following
thermochemical information:
2
C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2O(l)
H = -2599.3 kJ
CO2(g) C(s) + O2(g)
H = +393.5 kJ
2 H2O(l) 2 H2(g) + O2(g)
H = +571.7 kJ
H = kJ
Write an equation which represents the standard enthalpy of formation, AHtº, for FeCl3 (s). Remember in its standard state chlorine is a gas and occurs naturally as a dimer. Fe2O3 (s) + 6 HCI (g) 2 FeCl3 (s) + 3 H20 (1) Fe (s) + 3 Cl (g) - FeCl3 (s) 2 Fe (s) + 3 C12 (8) - 2 FeCl3 (s) Fe (s) + 3/2 C12 (8) ► FeCl3 (s)
19. Which of these reactions correspond to the enthalpy of formation (OHC) A C2H2(g) + H2(g) → CH4 (9) B H2(1) +02(1) - H20(1) Cdiamond + O2(g) → C02(9) D H20 (g) → H20(1) E Na(s) + Cl2(g) → NaCl(s)