Experiment 3 HtofSub

Experiment 3 HtofSub - Chem124 Fall2009 Name Computer...

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

View Full Document Right Arrow Icon
Chem 124 Fall 2009 Dr. Nguyen Name Olivia Nixon Computer Number 25 The Heat of Sublimation of Dry Ice Instructions: This report is to be completed by each of you INDIVIDUALLY after performing the experiment with your partner. This report is due at the beginning of class on Monday, October 5, 2009. You are to fill in this form using Microsoft Word to create a clear and informative report. To draw attention to your answers, you may want to use color or bold type. Be sure to keep your answers and calculations within the allotted spaces. You will turn in a hard copy of this report. READ THE DIRECTIONS CAREFULLY! Calculated Results: Fill in your results of your calculations in the table below. Title the table appropriately! (in space below) Data: Table 1: Heat/Energy Exchanged and Heat of Sublimation Calculations for Three Trials Trial # Heat Energy Exchanged Heat of Sublimation (in kJ/mol CO 2 ) 1 40.1 29.9 2 41.3 29.8 3 42.3 32.6 Average 41.2 30.7 Show a sample calculation for each of the following within the provided space: 1) heat energy exchanged: T final – T initial = Heat Energy Exchanged Trial 1 sample calculation: 292.9 K – 333 K = -40.1 K 2) H eat of sublimation in kJ/mol of CO 2 ∆H sub = (mass H 2 0 * 4.184 J/gK * ∆T (K)) ÷ (mass dry ice * 1 mole dry ice ÷ 44 g dry ice) * 1 kJ/1000J Trial 1 Sample Calculation: (61.14g * 4.184 J/gK * 40.1K) ÷ (15.1 g * 1 mole ÷ 44 g) * (1 kJ/1000J) = 29.9 kJ/mol Cluster Results:
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 12/05/2011 for the course CHEM 124 taught by Professor Hascall during the Fall '08 term at Cal Poly.

Page1 / 3

Experiment 3 HtofSub - Chem124 Fall2009 Name Computer...

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