TEST DAY!!!

hi everyone,

today was our very first test for chemistry 12. Hooray!!!!!

how was the test?

If you didn't bother to look and answer Ms. Kozoriz's hand outs, then you'll probably have had a hard time with the test.

the contents of the test is pretty much everything that we did in the previous week.

In my own opinion it was ok.

But I did have a problem with the mole part that is worth 4 marks, i think i got that one wrong.
I hope ms. K would be generous to at least give 1 mark for effort on trying to solve the problem.

so good luck to us all. and i hope everyone did well for this exam.

i really don't know what else to say.....

special date: FEB 26-27: get ready to name 12 chemicals.
question: are we suppose to pass a written report/research on the Test Tube Mystery Lab?

our next scribe is forgHa_baybhie

Neutralization, Titration, and Concentration

Well, I' m a scribe for today...
Actually, I'm a lil' bit confused about the formula that Ms. K gave to us...

Well, Before we continue our Titration Lab from yesterday, Ms. K. explained and gave some examples for us about Neutralization,Titration, and Concentration. She gave us a sheet that is really helpful, because it has a lot of information and this sheet explained the step by step...
Here's the notes that i've got...

Step #1: Balance equation: H2so4(aq) + Na OH(aq) -> Na2 SO4 + H2O
= H2SO4 + 2Na OH(aq) -> Na2 SO4 + 2H2O

Step #2: The formula is: n=CxV
0.0054mol H2SO4 x 2 mol NaOH Then, cancel both sulfuric acid, then do the calculation.
1 mol H2SO4

Step #3: The formula is C=n/V
0.0108 mol = C= 0.360 mol/L
0.0300L

After Ms.K. explained about this, she let us continue our Titration Lab. and reminded us about our TEST tomorrow....

So folks.... Don't forget about the First TEST tomorrow!!!
Good Luck to all of us!!!

I think it's phoebes3' s turn!!! Good daY!!!

Neutralization Reaction

Ew... I'm scribe today. Um.... This note seemed very short. Here we go....
First of all, We were talk about how to names the Acids . Here's the notes :
Salt Name (s)* Acid Names
HBr Hydrogen Bromide Hydrobromic Acid
HI Hydrogen Iodide Hydroiodic Acid
HF Hydrogen Fluoride Hydrofluoric Acid
H2S Hydrogen Sulfide Hydrosulfuric Acid

* s : solid

- Root Acid _Ternary:
HIO4 Periodic Acid
HIO3 Iodic Acid
HIO_2/ Iodus Acid
HIO Hypoiodous Acid
HI Hydroiodic Acid

Next , Ms. K explained and gave an some examples for us about Neutralization Reaction. I liked the sheets we got :) . After that, we went through the questions 1 to 5 in Neutralization Reaction WorkSheet. Most of them were balanced equation and naming the Acid.(^_^ It's pretty COol....).
Finally, we were doing Titration Lab and we'll continue tomorrow . So , yah....that's all the information for today.
- One more important thing . We will have a test on Wednesday,21 /2007 . YOU GUYS. ....DON'T FORGET <^_^>. Good luck to everyone (*)

I think Rhiyo will be Tuesday's scribe ^.^ . Have Fun.