Enthalpy

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10 Terms

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Enthalpy

total heat content of a system

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∆T (change in temperature)

final temp - initial temp

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mass =

volume x density (g/mL)

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Heat absorbed by solution (J)

q = m Cs ∆T

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Cs =

4.184 J/ g C

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Molarity (M) =

mol / L

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Experimental heat (ΔH)

  • -(q) (kJ/1000 J) / moles ___

units = kJ/mol

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Limiting reactant = 

reactant with lowest number of moles

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Theoretical (ΔH)

(sum of products) - (sum of reactants)

  • units = kJ/mol

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% error

experimental heat - theoretical heat / theoretical heat x 100%