For this graph that you are generating for next week, keep all the digits.
You need to convert all the temperature readings to Kelvin, so add 273.15. (Keep all digits) You need to take the inverse of temperature readings that have been converted to Kevin. (Keep all digits) You need to take the natural . . . → Read More: TP2 graph: Tips on graphing
Read the following:
T & P 2 – Rotary Evaporator, Precipitation, Gravity Filtration, Graphing Demonstrations of Nine Practical Lab Techniques – Techniques 6 and 9
We will be working on Techniques 6 and 9. Read through the lab carefully before coming to the lab.
From page 1, we learned that if we believe the temperatures were poorly measured, it would lead to the determination of ΔHvap of water to 2 significant figures.
But the graph of the data shows a very good fit of the data to a straight line ( R2= 0.998), so maybe the temperature measurements . . . → Read More: Where is the error in the “ln P Vs. 1/T” graph? Consider statistical errors (2 of 2)
Take a look at the twocolumn data.
T (oC) P (kPa) 0 0.612 10 1.227 20 2.536 30 4.242 40 7.37 50 12.33 60 19.9 70 31.15 75.7 46.12 89.7 70.1 100 101.32 120 198.5 200 1554.3
If we look closely at the data and pay attention to where the uncertainties are, we can . . . → Read More: Where is the error in the “ln P Vs. 1/T” graph? Consider measurements errors (1 of 2)


CHEM 2204 Check your email about Practical Assessment 1 and due dates of last week's lab and the correction graph. ... When and where to pick up your Practice Graph next week
Your set rep to pick up your marked Practice graphs on Monday. Some of you did not do a Peer Review of a fellow student’s graph. I encourage you to practice doing Practice Reviews as many of you benefited from the errors that your reviewer spotted and made the corrections before handing the final graph in for marking.
There were some things that were not done properly.
 Ensure that you and your peer reviewer(s) sign the graphs that you are handing in  Ensure that you hand in Graph 1 (original graph), Graph 2 (peer reviewed graph), Graph 3 (final graph that I mark)
When you see your marked lab, you will see two marks, which add to a total of 10.
 Graph mark: marked out of 8  Peer review mark: marked out of 2
If you did not get 8 out of 8 on the graph mark, you have the option to get up to 1 mark by doing the corrections on your graph. The corrected graph will be due the following week. The corrected graph must be stapled with the marked graphs as I will need to compare it to the previous graphs. ...
