ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: x_anna on October 31, 2011, 02:53:04 pm

Title: Question 5e) 2009 VCAA Exam
Post by: x_anna on October 31, 2011, 02:53:04 pm

Hi guys,

I was wondering what the answer to that question is? I read the answer for it on the VCAA report but I didn't really understand why Iron cannot be used as an electrode here!!

Thanks :)

Title: Re: Question 5e) 2009 VCAA Exam
Post by: Dr.Lecter on October 31, 2011, 02:58:21 pm

Fe oxidizes during discharge in preference to the V2+

Title: Re: Question 5e) 2009 VCAA Exam
Post by: x_anna on October 31, 2011, 03:03:35 pm

Thanks for the concise answer Dr Lecter :) for some reason I thought that using an iron electrode would mean that V2+/V3+ disappeared