Add a for exothermic reactions (temperature rise) and a positive sign for endothermic reactions (temperature fall). Common Troubleshooting Tips
According to available answer keys for Chemsheets calorimetry tasks, the solutions often involve multi-step calculations for specific reactions: Enthalpy of Combustion ( ΔcHcap delta sub c cap H calorimetry worksheet 2 answers chemsheets
Mass of water = 200 g Initial temp = 19.2 °C Final temp = 37.8 °C Mass of ethanol burned = 0.46 g ( M_r(\textC_2\textH_5\textOH) = 46.0 ) Add a for exothermic reactions (temperature rise) and
Specific heat capacity of solution = 4.18 J/g°C, density of solution ≈ 1 g/mL. density of solution ≈ 1 g/mL.
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