As I'm finishing up this year of Chemistry,
I've been really busy in 'my lab'(a.k.a~ the kitchen).
I thought I'd share a few of my experiments.
This one was doing an acid/base titration...
Titration is the process of slowly reacting a
base of unknown concentration
with an acid of known concentration (or vice versa)
until just enough acid has been added
to react with all the base.
This will determine concentration
of the unknown base. (or acid)
I used ammonia (a base) with some water
and used boiled red cabbage water as my indicator...
The ammonia solution turned green
indicating that it was a base.
I, then, took vinegar (an acid) and
added just enough so that it neutralized the base.
Meaning that if I added just one more drop of vinegar,
the solution would be an acid...
In doing this, the solution turned pink.
(I then calculated the concentraion of our ammonia,
which was 2.4 M.)
Yesterday I did lots of temperature effects on
the solubility of solids and gases.
My personal favorite was the 'Investigation of a
Solute That Releases Heat When Dissolved'.
I put lye into my beaker...
Then I slowly added room temperature water
until the water was about 1 centimeter above the lye...
A huge 'poof'!
And all of the sudden the water started boiling!
The reason is because when lye is dissolved,
it releases heat.
I could go into much more details like why and how,
and what exact reaction took place, but I would have
to fill up a whole page on my blog explaining. ;)
And you just might get a little bored. ;o)
Either way, I had lots of fun!
I hope everyone's having a great week.
I've been very busy, and I'm about to go
grocery shopping with my dad:)
We went on a daddy/daughter date Monday;
went to the mall, Walgreens, and a chinese restuarant.
I'm so glad he's home!