solutions and pH test

this week we took the solutions and pH test.
it was very hard, but i studies very hard so i got a 86%.
It was on titration and dilutions.
today, we turned in our reactions 1 packets and got a reactions 2 packet.
we balanced equations with cubes in a lab we did this week.
i have a lot of hw this week.
good thing the only hw for this class is pre reading the lab.

acids and bases lab

this week, we did a lab on acids and bases.
there were four stations.
the first was the one is where we saw if the solution can conduct electricity.
the second, third, and fourth one was where we saw the colors of the solutions.
we also had to answer questions about the lab.
we had to do worksheets in the green power point packet as well.
we also had to find the pH of the solutions with litmus paper.

making solutions lab

we did a lab this week with cobalt chloride.
we put a certain amount in a beaker,then filled it to 100mL with water.
then it was analyzed in the spectronic-20 machine.
we also did some more worksheets from the power point packet.
we worked on dilutions and stuff on solubility.
a new thing this week was the composition book.
we had to paste stuff in it and we get to use it on the tests!
to learn how to dilute something, click pict.

like dissolves like

this week, we worked in a blue packet for most of the week.
it was the power point packet, but there are questions in it this time.
there were stuff about solutes and solvents.
then we did a lab were we get a dropper and some dark purple liquid.
as we add more water, the liquid gets clearer.
from dark purple to purple to magenta to pink to clear.


dissolving is the process of going into solution.
for example: salt is a solute and water is the solvent.
the water dissolves the salt.