In a coffee-cup calorimeter, 140.0 mL of 1.3 M NaOH and 140.0 mL of 1.3 M HCl are mixed. Both solutions were originally at 25.2°C. After the reaction, the final temperature is 33.9°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. ΔΗ- kJ/mol
In a coffee-cup calorimeter, 140.0 mL of 1.3 M NaOH and 140.0 mL of 1.3 M HCl are mixed. Both solutions were originally at 25.2°C. After the reaction, the final temperature is 33.9°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. ΔΗ- kJ/mol
Chemistry
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ISBN:9781305957404
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Chapter1: Chemical Foundations
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Transcribed Image Text:In a coffee-cup calorimeter, 140.0 mL of 1.3 M NaOH and 140.0 mL of 1.3 M HCl are mixed. Both solutions were originally at 25.2°C. After the
reaction, the final temperature is 33.9°C. Assuming that all the solutions have a density of 1.0 g/ cm° 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.
AH =
kJ/mol
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