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18 Dec 2019

In a coffee cup calorimeter, 50.0 mL of 1.00 M NaOH and 50.0 mL of 1.00 M HCl are mixed. Both solutions were originally at 24.6 Â°C. After the reaction, the final temperature is 31.3 Â°C. Given that the density of NaCl solution is 1.038 g/mL and the specific heat of NaCl solution is 3.87 J/g-Â°C, calculate the ÎHâ¿áµáµáµ/mole for the reaction of HCl with NaOH. Assume that no heat is lost to the surroundings.

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Patrina SchowalterLv2

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In a coffee-cup calorimeter, 100.0 mL of 1.0M NaOH and 100.0 mL of 1.0M HCl are mixed. Both solutions were originally at 24.6°C. After the reaction, the final temperature is 31.3°C. Assuming that all the solutions have a density of 1.0 g/cm³ and a specific heat capacity of 4.18 J/°C g, calculate the enthalpy change for the neutralization of HCl by NaOH. Assume that no heat is lost to the surroundings or to the calorimeter.

pucegerbil398

NaOH(aq) + HCl(aq) ----->NaCl(aq) + H2O(l)

ÎH = -57.32KJ

50.0 ml of 2.00M HCl is 50.0 mL of2.00 M NaOH are mixed.
Both NaOH and HCl in aqueoussolution are 16.9Â°C. Final Temperature of solution is30.4 Â°C.

Density of the mixed solution,NaCl is 1.04 g/ml

Specific heat of 1.00 M NaCl(aq)is 3.93J/g-K

lemonclam37

In a coffee cup calorimeter, 20.0 mL of 2.00 M NaOH and 20.0 mL of2.00 M HCl are mixed. Both solutions were originally at 22.4 C.After the reaction, the final temperature is 33.8 C.
HCl (aq) + NaOH(aq) H2O(l) + NaCl(aq) + heat.
Heat lost by the reaction + heat gained by the NaCl solution =0
q lost + q gained = 0 q gained = (s) (m) (?T)

(A) Calculate the volume of NaCl(aq) (this will be the volume ofthe solution in the calorimeter).
(B) Given that the density of 1.00 M NaCl is 1.03 g/mL, calculatethe mass of the NaCl(aq).
(C) Calculate the ?T for the NaCl(aq).
(D) Given that the specific heat capacity of 1.00 M NaCl(aq) is3.87 J/gC, calculate the heat gained by the solution (qgained)
q gained
Given that 25.0 mL of 2.00 M NaOH and 25.0 mL of 2.00 M HClreacted. Calculate the number of moles of either NaOH or HCl thatreacted. Hneutralization is the heat for the reaction in units ofkJ/mole.
Calculate Hneutralization. (Pay close attention to the sign)
Hneutralization

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