Chem 1b lab discussion exp 9

Chem 1b lab - Derek Clary Experiment 9 Thermochemistry Discussion In this experiment we calibrated a Styrofoam calorimeter in order to measure the

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Derek Clary Experiment 9 Thermochemistry Discussion In this experiment we calibrated a Styrofoam calorimeter in order to measure the specific heat of different substances. Also, this experiment helped us use the first law of thermodynamic stating that energy must be conserved. The energy lost is equal to the energy gained, qc=-qh. In part one of the experiment, we were told to determine the heat capacity of our calorimeter, Ccal, in order to calculate the heat in the reaction. This can be solved for by the following equation. Some error will always occur when using homemade calorimeters as it is almost impossible to conserve all of the heat/energy. Some heat was lost through the hole on top, and even though the cups have a high heat capacity, some of the heat was absorbed by their walls. Ccal represents the specific heat capacity of the calorimeter. It was measured so that we could calculate transfers of heat. Ccal is necessary to calculate q and delta H. It was important to measure it twice; this is so because using two different equations to derive the Ccal ensures the accuracy of the Ccal. The calculated values of
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/09/2011 for the course CHEM 1B taught by Professor Watts during the Spring '08 term at UCSB.

Page1 / 3

Chem 1b lab - Derek Clary Experiment 9 Thermochemistry Discussion In this experiment we calibrated a Styrofoam calorimeter in order to measure the

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online