Official triage multi-choice solutions (1 Viewer)

[jj1996]

hahaha sorry i edited i meant 8*******

 

[QZP]

just struggling to understand why its 8. b)
similar principle to 2012 hsc question here http://community.boredofstudies.org/240/acidic-environment/305880/degree-ionisation.html
shouldnt H+ decrease and therefore HA becomes more ionised by shifting right? HA <--> H+ + A-
HEEELLPPP MEEEE

You are misunderstanding cause and effect. Q8: Graph gives you that as temperature decreases, pH increases (this is the effect). Now you have to find the cause - so 8 is B (it must have become less ionised and H+ concentration decrease)

 

[Triage]

Yup i got exact same 20/20 (more cleaner on this thread so I'll comment here ;p)

exactly the point.

 

[someslovak]

19/20! Question 13 is the devil. That is all

 

[go_cadel]

19/20. got question 1 wrong

 

[someth1ng]

OP got 20/20.

 

[ilostmypassword]

According to your multiple choice i got 12/20
There goes my HSC ahaha .
Not to sure about the short answers, Probably going to get around 50-60% !

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