| |
| |||||||
 |
| | LinkBack | Thread Tools | Rate Thread |
4 Oct 2009, 5:33 PM
| #1 (permalink) |
| Banned HSC: 2009 Gender: Undisclosed Location: where i am being gangbanged by examinations
Join Date: Sep 2009
Posts: 69
Last Activity:
13 Nov 2009, 2:08 PM  | Is itr eally neccesary to memorise the precipitation reactions and the processes to.. You can hide this advertisement by registering. and the processes to identifty ions in solution?My teacher said yes. I'm a little unsure aobut that reply, because there is quite alot of memorise, as well as it not being directly asked for in the syllabus. |
|  |
|
4 Oct 2009, 7:34 PM
| #2 (permalink) | |
| Xanthic Member  HSC: 2009 Gender: Undisclosed
Join Date: Mar 2008
Posts: 1,001
Last Activity:
Today, 10:57 PM  | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes Quote:
In the 3rd section of the cmm topic, one of the bullet points says: "deduce the ions present in a sample from the results of tests" How are you to deduce if you don't know the tests? | |
|
| |
|
4 Oct 2009, 7:53 PM
| #3 (permalink) |
| Prophet 9  HSC: 2009 Gender: Male Location: Sydney
Join Date: Aug 2008
Posts: 3,090
Last Activity:
16 Nov 2009, 3:09 PM  | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes yeah, it can be examined, theres dotpoints on this...
__________________ High '09 UAI aim: 98.5 Year 12 subjects 09: Ext. 1+2 Maths Adv. Eng Biology Chemistry ~ Sydney Boys High School 2009  “Work smart. And when it is smart to work hard, work hard too” |
|
| |
|
4 Oct 2009, 8:49 PM
| #4 (permalink) |
| Senior Member HSC: 2009 Gender: Male
Join Date: Jun 2009
Posts: 286
Last Activity:
19 Nov 2009, 3:59 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes i would have thought that it was only important to know what to add to a sample if suspected of certain ions. e.g. add barium ions to test for sulfates (a white precipitate i think), add hydroxides to test for copper ions if a flame test is inappropriate (u will get a blue precipitate). |
|
| |
|
4 Oct 2009, 8:59 PM
| #5 (permalink) |
| Premium Member  HSC: 2009 Gender: Male Location: where there is pho and sugar cane drinks
Join Date: Oct 2007
Posts: 1,303
Last Activity:
Today, 11:23 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes yes... i've seen it come up a lot in past hsc exams - esp. the MC |
| |
|
4 Oct 2009, 9:00 PM
| #6 (permalink) |
| Senior Member  HSC: 2009 Gender: Undisclosed
Join Date: Aug 2008
Posts: 356
Last Activity:
Today, 10:21 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes ^ i think only the main ones are needed... i have never come across an HSC question where u needed to kno the steps in detail... then again i havent done all the hsc papers. |
|
| |
|
30 Oct 2009, 9:51 PM
| #7 (permalink) |
| New Member HSC: 2009 Gender: Male
Join Date: Sep 2008
Posts: 21
Last Activity:
16 Nov 2009, 8:56 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes do we need to know everything about EDTA and Winkler methods? the methods are so annoying and hard to memorise =[ |
|
| |
|
30 Oct 2009, 11:41 PM
| #8 (permalink) |
| Member HSC: 2009 Gender: Male
Join Date: Nov 2006
Posts: 116
Last Activity:
19 Nov 2009, 7:23 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes this is talking about the precepititaion reactions for anions and cations-not water testing. But for EDTA and WInkler I don't tink u gotta know it in detail. |
|
| |
|
31 Oct 2009, 8:10 AM
| #9 (permalink) | |
| Prophet 9 <3  HSC: 2009 Gender: Male Location: Sydney
Join Date: May 2007
Posts: 4,543
Last Activity:
Today, 9:44 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes Quote:
__________________ | |
|
| |
|
31 Oct 2009, 5:17 PM
| #10 (permalink) |
| Junior Member  HSC: 2009 Gender: Female
Join Date: Mar 2009
Posts: 46
Last Activity:
11 Nov 2009, 10:48 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes I know all the precipitation tests but are there any equations I need to memorise?
__________________
|
|
| |
|
31 Oct 2009, 5:20 PM
| #11 (permalink) |
| Member HSC: 2009 Gender: Male
Join Date: Sep 2008
Posts: 139
Last Activity:
15 Nov 2009, 4:21 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes wtf are EDTA and the winkler thing. we definitely never learnt that. for dissolved oxygen could u do electrolysis and then say the product(not sure what it would be) is proportional to DO
__________________ Subjects- Maths Ext 2 (1/2) Maths Ext 1 (1/12) English Advanced (1/55) Chemistry (1/12) Physics (1/9) |
|
| |
|
31 Oct 2009, 7:00 PM
| #12 (permalink) |
| Member HSC: 2009 Gender: Male
Join Date: Sep 2008
Posts: 139
Last Activity:
15 Nov 2009, 4:21 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes ????????
__________________ Subjects- Maths Ext 2 (1/2) Maths Ext 1 (1/12) English Advanced (1/55) Chemistry (1/12) Physics (1/9) |
|
| |
|
31 Oct 2009, 7:05 PM
| #13 (permalink) | |
| Executive Member  HSC: 2009 Gender: Male Location: right behind you, mate
Join Date: May 2008
Posts: 681
Last Activity:
7 Nov 2009, 5:40 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes Quote:
__________________ 08 Mathematics Studies of Religion 09 Mathematics ext 2 Physics Chemistry Advanced English ATAR: hopefully 97 + GOOD LUCK!!  | |
|
| |
|
31 Oct 2009, 8:09 PM
| #14 (permalink) |
| Member HSC: 2009 Gender: Male
Join Date: Sep 2008
Posts: 139
Last Activity:
15 Nov 2009, 4:21 PM | Re: Is itr eally neccesary to memorise the precipitation reactions and the processes so do i have to know anything about them or just say like dissolved oxygen can be measured using the winkler method
__________________ Subjects- Maths Ext 2 (1/2) Maths Ext 1 (1/12) English Advanced (1/55) Chemistry (1/12) Physics (1/9) |
|
| |
| Sponsored Links
|
|
| Bookmarks |
| Thread Tools | |
| Rate This Thread | |
| |
