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When 0.100 g of Zn(s) combines with enough HCl to make 55.0 mL of HCl(aq) in...

When 0.100 g of Zn(s) combines with enough HCl to make 55.0 mL of HCl(aq) in a coffee cup calorimeter, all of the zinc reacts, which increases the temperature of the HCl solution from 23.0 ∘ ∘ C to 24.5 ∘ ∘ C: Zn(s) + 2HCl(aq) → ZnCl 2 2 ​ (aq) + H 2 2 ​ (g) Calculate the enthalpy change of the reaction Δ ΔH r x n rxn ​ . (Assume the density of the solution is 1.00 g/mL and the specific heat capacity of solution is 4.184 J/g ∘ ∘ C.) in J/mol.

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