Predictions for Chemistry 2014 HSC? (6 Viewers)

[faisalabdul16]

"ooOOooOOoo" - Square reference, he hasn't done it in a while

Are you asian?

You have a 33.33% of being correct

 

[Queenroot]

You have a 33.33% of being correct

Is she Indian?

 

[Queenroot]

nah LOL curry

ngaw adrita missing square :')

Omg noice what is your name?

 

[faisalabdul16]

Is she Indian?

Wot.

I was making reference to the general background consensus at HPF's school.

33.33% Asian
33.33% Indian
33.33% Sri Lankan

0.01% Other

 

[Queenroot]

Wot.

I was making reference to the general background consensus at HPF's school.

33.33% Asian
33.33% Indian
33.33% Sri Lankan

0.01% Other

Wat school I forget, definitely in top 20 then

 

[Hi there444]

Fais whats your name? Editor whats yours?

 

[SuchSmallHands]

Fais whats your name? Editor whats yours?

I'm going to guess that faisalabdul's name is probably Faisal Abdul.

 

[SuchSmallHands]

Inb4 that's wrong and I look like an idiot

 

[SuchSmallHands]

Lol mreditor doesn't do chem doubt he's going to look at this thread

whats yours Hithere?

OMG HOW DID YOU FIGURE THAT OUT!!!!!!!

Senior English has honed my ability to draw implications from language haha

 

[Queenroot]

I shall pm you better not publicise


LOL sounds about right.

Actually its more like
80% Asian
19% Indian + Sri Lankan
1% other

pls do

noice noice, sounds like any typical top 20 school

 

[SuchSmallHands]

pls do

noice noice, sounds like any typical top 20 school

Can confirm. My school is as ethnically diverse as Hitler Youth and we're all dumb af.

 

[Hi there444]

Lol mreditor doesn't do chem doubt he's going to look at this thread

whats yours Hi there?


OMG HOW DID YOU FIGURE THAT OUT!!!!!!!

Hahaha I cant just say that out in public. But who knows abdul may be his name and faisal is not included in his name?

 

[faisalabdul16]

Yes haha my names my username

 

[enigma_1]

Yes haha my names my username

oooh that is so authentic!!

Hahah jks

But wow, derailed hard into a guessing game ay??

inb4stalkingcommences

 

[Queenroot]

Yes haha my names my username

faisabdalalalah

 

[Hi there444]

The pracs are simple. Most take like 2 seconds.

You have to elaborate on what i've written below, but in simple terms.

Water Hardness - chuck soap flakes in soft water and hard water. Soft water = froth, Hard water = small powder (scum aka calcium stearate) at bottom of test tube. Titration with EDTA (also not done by most schools, just got to know the ratio is 1:1, ratio of Calcium ions to EDTA ions
Turbidity - using a turbidity column, pour water in until you cannot see the "X" at the bottom, read of measurement on the column.
pH - pH meter or pH probe attached to a data logger.
Ions - precipitation
BOD - Gather water, measure the dissolved oxygen concentration. Place in brown blag, place in the dark for 5 days. Measure DO again, difference in DO levels = BOD.
Total Dissolved Solids - using a conductivity meter or evaporation of water sample.
DO - using oxygen sensitive electrode or Winkler titration (titration which you do not do at school, too long and complex)

Oh btw isnt it turbidity tube or secchi disk?

 

[Queenroot]

Oh btw isnt it turbidity tube or secchi disk?

yes

 

[GOsie]

Reviving my shipwrecks question as it was left unanswered.
i) Name of method for removing salt from an artifact recovered from a wreck (1 mark)
ii) Explain, with reference to two examples, chemical procedures used to clean and preserve artifacts from wrecks (5 marks)

Non-shipwrecks people:
Outline the difference in chemical structure between the Oxygen molecule (O2) and the Ozone molecule (O3), and with reference to these, outline two differences in their chemical properties (4 marks)

 

[Cleverusername5321]

Anyone know how to do this? I don't have the option to look at the marking guidelines...

 

[Hi there444]

Anyone know how to do this? I don't have the option to look at the marking guidelines...

A. Bcoz side with more moles = more collisions = greater rate .