Submitted by: Submitted by freshangel15
Views: 1437
Words: 1178
Pages: 5
Category: Science and Technology
Date Submitted: 02/23/2011 06:05 PM
PRINTED NAME: __JEHANNE BELANGE__ TA’S NAME: __JEAN SMITH__
LAB PARTNER’S NAME: __AZAM QURESHI__
I have completed this homework independently, in accordance with all the provisions of the ethics statement inside the front cover of the lab manual. I have not looked at completed work from other students from this year or from previous years.
Signature:___________________________ Date:___________
Experiment 1 Determination of Thermodynamic Parameters From Measurements Related To The Solubility of Borax
Purpose
The purpose of this experiment is to determine the thermodynamic quantities of the dissolution of borax by measuring the solubility product over the temperature range of 5°-55° C.
Data
|Assigned Temperature |20°C |
|Amount of borax obtained |5.0417 g |
Temperature before adding 5.00 ml to trial beakers
|Trial Beaker 1 |19.2° C |
|Trial Beaker 2 |19.0° C |
|Trial Beaker 3 |19.6° C |
|Trial Beaker 4 |19.1° C |
|Trial Beaker 5 |19.2° C |
Titration of borax solution
|Trial |Starting point on burette |Ending point on burette |Amount of HCl used to reach endpoint |
|1 |4.25 ml |9.65 ml |5.40 ml |
|2 |9.65 ml |15.10 ml |5.45 ml |
|3 |15.10 ml |20.45 ml |5.35 ml |
|4 |20.45 ml |25.75 ml |5.30 ml |
|5 |25.75 ml |31.05 ml |5.30 ml |
Data From Blackboard
|Temp...