What is the balanced chemical equation for the reaction used to calculate AH; of STCO3 (s)?

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.8: Product- Or Reactant-favored Reactions And Thermodynamics
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What is the balanced chemical equation for the reaction used to calculate AH; of SrCO3 (s)?
If fractional coefficients are required, enter them as a fraction (i.e. 1/3). Indicate the physical states using the abbreviation (s), (1), or (g) for solid,
liquid, or gas, respectively without indicating allotropes. Use (aq) for aqueous solution.
Express your answer as a chemical equation.
Transcribed Image Text:What is the balanced chemical equation for the reaction used to calculate AH; of SrCO3 (s)? If fractional coefficients are required, enter them as a fraction (i.e. 1/3). Indicate the physical states using the abbreviation (s), (1), or (g) for solid, liquid, or gas, respectively without indicating allotropes. Use (aq) for aqueous solution. Express your answer as a chemical equation.
The standard enthalpy of formation (AH;) is the enthalpy
change that occurs when exactly 1 mol of a compound is
formed from its constituent elements under standard
conditions. The standard conditions are 1 atm pressure, a
temperature of 25 °C , and all the species present at a
concentration of 1 M .A"standard enthalpies of formation
table" containing AH; values might look something like this:
AH
Substance
H(g)
H2(g)
218 kJ/mol
o kJ/mol
0 kJ/mol
Sr+ (aq) -549.7 kJ/mol
Sr(s)
71 kJ/mol
0 kJ/mol
C(g)
C(s)
N(g)
473 kJ/mol
02(g)
0 kJ/mol
O(g)
249 kJ/mol
S2(g)
129 kJ/mol
Transcribed Image Text:The standard enthalpy of formation (AH;) is the enthalpy change that occurs when exactly 1 mol of a compound is formed from its constituent elements under standard conditions. The standard conditions are 1 atm pressure, a temperature of 25 °C , and all the species present at a concentration of 1 M .A"standard enthalpies of formation table" containing AH; values might look something like this: AH Substance H(g) H2(g) 218 kJ/mol o kJ/mol 0 kJ/mol Sr+ (aq) -549.7 kJ/mol Sr(s) 71 kJ/mol 0 kJ/mol C(g) C(s) N(g) 473 kJ/mol 02(g) 0 kJ/mol O(g) 249 kJ/mol S2(g) 129 kJ/mol
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