Determining ΔHrxn II: Hess’s Law Determining ΔHrxn III: ΔH°f Hess’s Law with Baking Soda Using Enthalpy of Formation Values Chemistry 202Course AnnouncementsContact Info and Office HoursCourse InformationVideos for Exam I MaterialVideos for Exam II MaterialVideos for Exam III MaterialOWL Text HomeworkLon-CapaOnline GradebookExam InformationChemistry Learning CenterCLC HomepageCourse WebsitesTutoring ServicesOnline ResourcesOther ServicesLocationTutorials