exp 14 data-entry program and sig. fig.

[robert zellmer]

I'm getting a lot of e-mails about sig. fig. for the exp 14 pre-lab. The
program is doing them correctly.  I'm finding a lot of students are not.

I sent some links out previously dealing with exp 14.  The following
link discusses sig. fig. in Ps from eqn 6 in the manual in quite some
detail.  It also discusses sig. fig. for ln(Ps).  I also discuss s.f. in 
terms
of the temperature conversion from Celsius to kelvin but don't give the
actual number of s.f. you should get because I thought from what I
stated you could figure this out.

*Exp 14 - Help for Exp 14* 
<http://chemistry.osu.edu/%7Erzellmer/chem1220/faq/exp14.txt>

This link can be found at the following link:

*Helpful Tidbits for 1220* 
<http://www.chemistry.ohio-state.edu/%7Erzellmer/chem1220/faq/faq_1220.htm>

At this link you will also see the following link,

*Manipulating Logs and Sig. Figs.* 
<http://chemistry.osu.edu/%7Erzellmer/chem1220/faq/sig_fig_logs.txt>

I discuss in more detail and show why the s.f. in the log of a number
shows up in the decimal places and not the number in front of the
decimal point.  This is also discussed in Appendix A of the textbook.

Please look at the original link again and this other link and if you still
don't understand stop by my office (280B Celeste).

Dr. Zellmer
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