This forum is designated for students attending General Chemistry 100. It is used as our "virtual" office hours to ask any and all questions, share ideas,and get to know your classmates.
Tuesday, September 21, 2010
Question Forum
Post any questions and/or comments here
If you have posted a question be sure to check for my response!
Michelle- 1) Yes to #7. Keep in mind that the pycnometer will hold only a certain volume of liquid therefore we can say that the volume of the water in the pycnometer will also be the volume of the IPA. 2) Once you have #8 (mass) and #9 (volume) you can calculate #10. Do this for both trials and take the average of the two.
Professor, I know its kind of late to ask for help, but this is the only time I have to do the per-lab. I can't seem to figure out what numbers go where.
Like in number3-c, What was the amount of heat gained by the water. I know there is an equation on the other page but I still don't understand it.
I sent you an email - but I'll just ask you a question similar to my email - If you know your calculations that we did in lab on 10/15 is wrong is there anyway for me to re-due what was done in lab - I know where I went wrong - I just need a chance to correct it! if not - what does that mean for the grade for this lab?
Hi Professor, I was just wondering if I can stop by for extra help tomorrow? I need help understanding some of the equations for the next exam. What time are you available? Thanks, Jessica
Hi Professor,
ReplyDeleteI'm trying to complete lab #2 in re to #9 do I calculate the same as #7?
Michelle
What steps do I take to get the density of IPA -(#10)
ReplyDeleteMichelle-
ReplyDelete1) Yes to #7. Keep in mind that the pycnometer will hold only a certain volume of liquid therefore we can say that the volume of the water in the pycnometer will also be the volume of the IPA.
2) Once you have #8 (mass) and #9 (volume) you can calculate #10. Do this for both trials and take the average of the two.
Professor,
ReplyDeleteI know its kind of late to ask for help, but this is the only time I have to do the per-lab.
I can't seem to figure out what numbers go where.
Like in number3-c, What was the amount of heat gained by the water. I know there is an equation on the other page but I still don't understand it.
Jess
Hi Professor,
ReplyDeleteI sent you an email - but I'll just ask you a question similar to my email - If you know your calculations that we did in lab on 10/15 is wrong is there anyway for me to re-due what was done in lab - I know where I went wrong - I just need a chance to correct it! if not - what does that mean for the grade for this lab?
Hin998 (please put your name next time) - see me in lab.
ReplyDeleteHi Professor,
ReplyDeleteI was just wondering if I can stop by for extra help tomorrow? I need help understanding some of the equations for the next exam. What time are you available?
Thanks,
Jessica