exp 17 changes - addendum

[robert zellmer]

This also changes the volumes of water.  The volumes of Dye and water have
add up to 20 mL total.  I've put a new version of the manual pages with the
changes for this table on page 33 of the manual.

Dr. Zellmer

On 3/26/2019 8:59 PM, robert zellmer wrote:
> There's a change in the volumes of Dye to use in Part A.  The first table
> has volumes of 4, 6, 8 and 10 mL of Dye.  We're changing these to
> 5, 6.5, 8 and 10.  There were some problems with the 4 mL one today,
> probably because the rooms were rather warm.  Also, there may have
> been some problems because some people measured volumes slightly
> below the 4 mL or had air bubbles in the tip of the buret.  You have to
> make sure you don't have air bubbles or you won't get the proper volumes.
> If you see a meniscus in the tip when you've got fluid in the buret it 
> means
> there's air above it.
>
> Dr. Zellmer