Question:

A styrofoam calorimeter contains 70.0 mL of 2.50 M NaOH at

Last updated: 8/9/2022

A styrofoam calorimeter contains 70.0 mL of 2.50 M NaOH at

A styrofoam calorimeter contains 70.0 mL of 2.50 M NaOH at 20.3°C. When 10.28 g H2C2O4 is added to the calorimeter, the temperature of the resulting solution increases to a maximum of 44.7°C. The reaction that occurs is: H₂C2O4(s) + 2 NaOH(aq) → Na2C₂O4 (aq) + 2 H₂O(l) What is the (experimental) enthalpy change for this reaction, ΔH ? (Use the total mass of solution and 4.18 J/(g°C) for the specific heat of the solution in your calculations.)