adnan91
Member
I love biopol!! I love haber I love esters ethanol alternative fuel thingo i swear i've done it atleast 15 times anyway I love chemistry as a whole i want a 90+ raw mark
-
Finished your HSC? Check out our University Discussion, Non-School forums or help out next year's HSC students! -
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page
Prempt the Questions Thread (2 Viewers)
- Thread starter Darrow
- Start date
JasonNg1025
Member
- Joined
- Oct 14, 2007
- Messages
- 295
- Gender
- Male
- HSC
- 2010
Re: 回复: Re: 回复: Re: 回复: Re: 回复: Re: Prempt the Questions Thread
Mmm, probably a polyhydroxyalkanoate, but is the polyhydroxybutanoate part of the polyhydroxyalkanoate group?
Cause I'm too used to writing Biopol as a PHB, so not sure if I am wrong
Mmm, probably a polyhydroxyalkanoate, but is the polyhydroxybutanoate part of the polyhydroxyalkanoate group?
Cause I'm too used to writing Biopol as a PHB, so not sure if I am wrong
adnan91
Member
PHA is biopol and produced by bacteria as tom said^^
SkimDawg
Feeling Good
- Joined
- Nov 23, 2007
- Messages
- 200
- Gender
- Male
- HSC
- 2008
Yeah a question about esters sounds likely. I reckon:
- What steps are taken to purify and sanitise water (hasn't been something like this since hsc 2002)
- An Ethanol renewable resource question with a twist
- Haber process and its significance in world history
- A battery that you have studied
- A synthetic bio polymer (please no!)
- A neutralisation substance question (seems to be common these days)
- For shipwrecks, a 7 marker about how electrolysis has blah blah.... , as well as some first hand investigation about the rate of rusting in different conditions or acids, ect.
It wouldnt suprise me if none of this is in the paper lol
- What steps are taken to purify and sanitise water (hasn't been something like this since hsc 2002)
- An Ethanol renewable resource question with a twist
- Haber process and its significance in world history
- A battery that you have studied
- A synthetic bio polymer (please no!)
- A neutralisation substance question (seems to be common these days)
- For shipwrecks, a 7 marker about how electrolysis has blah blah.... , as well as some first hand investigation about the rate of rusting in different conditions or acids, ect.
It wouldnt suprise me if none of this is in the paper lol
axlenatore
Scuba Steve
- Joined
- May 13, 2007
- Messages
- 1,048
- Gender
- Male
- HSC
- 2008
Re: 回复: Re: 回复: Re: 回复: Re: 回复: Re: Prempt the Questions Thread
Once source i have says alkaligene eutrophus makes PHBtommykins said:
nandayo
ismist
- Joined
- Jun 25, 2006
- Messages
- 252
- Gender
- Male
- HSC
- 2008
Re: 回复: Re: 回复: Re: 回复: Re: 回复: Re: Prempt the Questions Thread
You can't say it produces 'PHA'...PHAs are polyhyroxyalkanoates - that's a generic term and kind of avoids stating what it actually produces. Like saying the dehydration of ethanol produces an alkene.
As far as I know Biopol consists of PHB (polyhyroxybutyrate) and PHV (polyhydroxyvalerate) because valeric acid is added in the process and pretty sure PHV is produced as a natural defence mechanism by the Alcaligenes Eutrophus.tommykins said:
You can't say it produces 'PHA'...PHAs are polyhyroxyalkanoates - that's a generic term and kind of avoids stating what it actually produces. Like saying the dehydration of ethanol produces an alkene.
syriangabsta
Member
- Joined
- Feb 27, 2007
- Messages
- 297
- Gender
- Male
- HSC
- N/A
Defeniately Haber pRocess. All my teachers have said it would come too, hasnt been in for a while.
tommykins
i am number -e^i*pi
- Joined
- Feb 18, 2007
- Messages
- 5,730
- Gender
- Male
- HSC
- 2008
Polyhydroxybutyrate (PHB) is a polyhydroxyalkanoate (PHA), a polymer belonging to the polyesters class that was first isolated and characterized in 1925 by French microbiologist Maurice Lemoigne. PHB is produced by micro-organisms (like Alcaligenes eutrophus or Bacillus megaterium) apparently in response to conditions of physiological stress.crammy90 said:
wikipedia