Prediction for Chem Exam (1 Viewer)

[duxxx]

Hey guys what do you guys predict will be in the HSC exam this year? What pracs what short answers?

 

[Drsoccerball]

What is an ester

 

[rand_althor]

Possible flowcharts/diagrams:
- Titration method, or part of it
- Production of a polymer from natural sources
- Production of a biopolymer
- Industrial production of ethanol from sugar cane
- Identifying cations or anions
- AAS
- Water tests, e.g. TDS, BOD

Can anyone think of more?

 

[YouCantMakeMe]

What about for 7 marker in options?

 

[iforgotmyname]

Titration methods haven't been tested that much so expect 5 marker on how methods should be performed

 

[Mr_Kap]

esters (there has been the pas few years). And ozone. And some water quality shit.
Possibly AAS (BUT THERE was one last year).

Possibly Haber procces (either impact on society, compromise conditions, or the need to manage it)

 

[BlueGas]

Possible flowcharts/diagrams:
- Titration method, or part of it
- Production of a polymer from natural sources
- Production of a biopolymer
- Industrial production of ethanol from sugar cane
- Identifying cations or anions
- AAS
- Water tests, e.g. TDS, BOD

Can anyone think of more?

For production of polymer do you mean cellulose as a raw material, then glucose.....ethanol.......ethylene....and then so on?

 

[rand_althor]

For production of polymer do you mean cellulose as a raw material, then glucose.....ethanol.......ethylene....and then so on?

Yep. Alternatively, crude oil -> fractional distillation -> cracking -> ethene and so on.

 

[Khan.Paki]

What is the process to get glucose from cellulose?

 

[BlueGas]

What is the process to get glucose from cellulose?

Acid hydrolysis or bacterial digestion.

 

[rand_althor]

What is the process to get glucose from cellulose?

Enzymes called cellulase are used. Read here: http://www.easychem.com.au/production-of-materials/biomass-research/cellulose-as-a-raw-material

 

[kawaiipotato]

Hoping there isn't a 5 marker on sanitising of water supply or lead/acid cell

 

[Chris_S]

There is probably going to be a short-response question on anion and cation testing.

 

[BlueGas]

There is probably going to be a short-response question on anion and cation testing.

There is one already for 2014 so I doubt another question will come again.

 

[Yeungster]

name the elements in alphabetical order (7 marks)

 

[invisible036]

How likely is it to have Acid theories/scientists and Chemistry cells, Biopolymer ?

 

[TQuadded]

name the elements in alphabetical order (7 marks)

best post ever

 

[monopoly73]

name the elements in alphabetical order (7 marks)

i hope they don't ask this, i'll be dead, such a hard question

 

[pricey97]

Anyone that does shipwrecks, do you think there will be a "trace the historical developments of choice of materials used in the construction of ocean-going vessels.."?

 

[TQuadded]

Anyone that does shipwrecks, do you think there will be a "trace the historical developments of choice of materials used in the construction of ocean-going vessels.."?

What was last year's 7 marker for Shipwrecks and Corrosion? If it's not this one, then maybe the restoration and preservation techniques.