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3 cards from this section. Quick, good the night before a test.
What is the purpose of a coffee-cup calorimeter?
It’s related to heat measurement.
If the temperature of the solution increases, is the reaction exothermic or endothermic?
Think about heat release.
What does a coffee-cup calorimeter primarily measure?
Consider what changes during reactions.
True or False: The coffee-cup calorimeter operates under constant volume.
Remember its setup.
You conduct an experiment mixing 100 mL of 0.50 M HCl and 100 mL of 0.50 M NaOH, measuring a temperature rise from 25.0 °C to 37.0 °C. Calculate the enthalpy change per mole of water produced, given the specific heat capacity remains as 4.18 J/(g·°C).
Calculate moles first to find accurate ΔH.
In a calibration experiment, you determine that your coffee-cup calorimeter has a heat capacity of 50 J/°C. A reaction causes the temperature of the calorimeter to increase by 5°C. How much heat did the calorimeter absorb?
Think about how to calculate total heat absorbed.
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