Use the experimental values to calculate the enthelpy change in the system.

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SUMMARY

The discussion focuses on calculating the enthalpy change in a chemical reaction involving 100.0 mL of 1.00 M KOH(aq) and 100.0 mL of 1.00 M HBr(aq). The initial temperature of the system is 20.0 °C, and the final temperature is 22.5 °C. Participants emphasize using the specific heat of water to determine the heat exchanged at constant pressure, which equates to the enthalpy variation. The discussion highlights the importance of experimental values in thermodynamic calculations.

PREREQUISITES
  • Understanding of enthalpy and thermodynamic principles
  • Knowledge of molarity and solution preparation
  • Familiarity with calorimetry and heat exchange concepts
  • Basic skills in performing calculations involving temperature changes
NEXT STEPS
  • Learn how to calculate enthalpy change using the formula q = mcΔT
  • Study the principles of calorimetry in chemical reactions
  • Explore the concept of specific heat capacity and its applications
  • Investigate the role of constant pressure in thermodynamic processes
USEFUL FOR

Chemistry students, educators, and anyone involved in laboratory experiments related to thermodynamics and calorimetry will benefit from this discussion.

Frank665
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Use the experimental values to calculate the enthalpy change in the system.

Observation Experiment
Quantity of reactant 1 100.0 mL of 1.00 M KOH(aq)
Quantity of reactant 2 100.0 mL of 1.00 M HBr(aq)
Initial Temperature (oC) 20.0
Final Temperature (oC) 22.5
 
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Frank665 said:
Use the experimental values to calculate the enthalpy change in the system.

Observation Experiment
Quantity of reactant 1 100.0 mL of 1.00 M KOH(aq)
Quantity of reactant 2 100.0 mL of 1.00 M HBr(aq)
Initial Temperature (oC) 20.0
Final Temperature (oC) 22.5

If your teacher didn't give you the (constant pressure, I assume) specific heats, it should mean he assumes you use the one of water, so you can easily find the heat exchanged (at constant pressure it's = enthalpy variation).
Of course I won't make the computations for you, this is an homework.
 

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