Chemistry · Chemical Thermodynamics
Calculate the standard heat of formation (in kcal/mol) of aqueous Ba2+ ion using the given data: Standard heat of formation of SO42-(aq) = -216 kcal/mol Standard heat of crystallization of BaSO4(s) from its ions = -4.5 kcal/mol Standard heat of formation of BaSO4(s) = -349 kcal/mol
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1+220.5
- 2+133.0
- 3-133.0
- 4-128.5✓
Correct answer
-128.5
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