A coffee cup calorimeter with a heat capacity of 4.80 J/∘C4.80 J/∘C was used to measure the change in enthalpy of a prec
Posted: Wed Jul 06, 2022 10:47 am
A coffee cup calorimeter with a heat capacity of 4.80 J/∘C4.80 J/∘C was used to measure the change in enthalpy of a precipitation reaction. A 50.0 mL50.0 mL solution of 0.360 M AgNO30.360 M AgNO3 was mixed with 50.0 mL50.0 mL of 0.290 M KSCN.0.290 M KSCN. After mixing, the temperature was observed to increase by 3.28 ∘C.3.28 ∘C. Calculate the enthalpy of reaction, Δ𝐻rxn,ΔHrxn, per mole of precipitate formed (AgSCN).(AgSCN). Assume the specific heat of the product solution is 4.11 J / (g⋅∘C)4.11 J / (g⋅∘C) and that the density of both the reactant solutions is 1.00 g/mL.
Calculate the theoretical moles of precipitate formed from AgNO3AgNO3 and KSCN
theoretical moles of precipitate formed from AgNO3: _______________ moles
theoretical moles of precipitate formed from KSCN: ________________ moles
Calculate the heat change experienced by the calorimeter contents, 𝑞contents
𝑞contents= _________________ J
Calculate the heat change experienced by the calorimeter, 𝑞cal
𝑞cal=__________________ J
Calculate the heat change produced by the solution process, 𝑞solution.
𝑞solution= _______________ J
Calulate Δ𝐻solution for one mole of precipitate formed.
Δ𝐻solution=____________kJ/mole
Calculate the theoretical moles of precipitate formed from AgNO3AgNO3 and KSCN
theoretical moles of precipitate formed from AgNO3: _______________ moles
theoretical moles of precipitate formed from KSCN: ________________ moles
Calculate the heat change experienced by the calorimeter contents, 𝑞contents
𝑞contents= _________________ J
Calculate the heat change experienced by the calorimeter, 𝑞cal
𝑞cal=__________________ J
Calculate the heat change produced by the solution process, 𝑞solution.
𝑞solution= _______________ J
Calulate Δ𝐻solution for one mole of precipitate formed.
Δ𝐻solution=____________kJ/mole