10% CH4
14.5% C2H6
11.3% C2H2
9.8% C3H8
8.6% C4H10
5% H2
13.2% CO
7.6% CO2
5.2% O2
3% H2S
7% N2
4.8% C2H4
a) Identify the combustion chemical equation.
b) Write the chemical equation with a basis of 100 kg-mol
c) Identify the O2 needed
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10% CH4 14.5% C2H6 11.3% C2H2 9.8% C3H8 8.6% C4H10 5% H2 13.2% CO 7.6% CO2...
TABLE 7.2 Some Standard Molar Enthalpies of Fa AcHº at 298.15 K Substance kJ/mola Substance CO(g) CO2(g) CH4(g) C2H2(g) C2H4(g) C2H6(g) C3H8(g) C4H10(g) CH3OH(1) C2H5OH(1) HF(g) HCl(g) -110.5 -393.5 - 74.81 226.7 52.26 -84.68 - 103.8 – 125.6 –238.7 –277.7 -271.1 -92.31 HBr(g) HI(g) H2O(g) H2O(1) H2S(g) NH3(g) NO(g) N2O(g) NO2(g) N204(8) SO2(g) SO3(g) aValues are for reactions in which one mole of substance is formed. M been rounded off to four significant figures. (Reference to Equation 7.22): A Hº...
1. Moles of Reactant to Mass of Reactant: Identify the iodide ions and ozone in the balanced chemical equation. Use mole ratio, then convert to grams. A method used by the EPA for determining the ozone concentration in the air is to pass an air sample through a bubbler containing iodide ions. The iodide ions remove the ozone according to the following reaction: O3(g) + 2 I-(aq) + H2O(l) → O2(g) + I2(aq) + 2 OH-(aq) How many grams of ozone...
Thermodynamic properties of pure
substances
Standard thermodynamic quantities for selected substances at 25
°
C listed alphabetically by most important atom.
substance
Δ
Hf
°
(kJ/mol)
Δ
Gf
°
(kJ/mol)
S
°
(J/mol∙K)
Aluminum
Al3+ (aq)
---
-485.0
---
Al (s)
0
0
28.3
Al2O3 (s)
-1675.7
-1582.3
50.9
Al(OH)3 (s)
---
-1147.25
---
Bromine
Br− (aq)
---
-104.0
---
Br2 (l)
0
0
152.2
Br2 (g)
30.9
3.1
245.5
HBr (g)
-36.3
-53.4
198.7
Calcium
Ca2+ (aq)
---
-553.6...