Sodium Chloride Electrolysis

04er · 30 Aug 2004, 4:54 AM

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Hey we are doing a practical where we carry out electrolysis of sodium chloride, to identify, compare and explain the different products produced with dilute and concentrated salt solutions. Does anyone have a copy of this (or a similar) practical? If you do, could you please explain why oxygen and hydrogen are produced when dilute NaCl is electrolysed and why chlorine and hydrogen are produced with concentrated NaCl? Anything would be greatly appreciated.

Heinz · 30 Aug 2004, 6:26 AM

I did an assessment on this dot point. Hope it helps

(i think i got full marks for it)

04er · 30 Aug 2004, 11:03 AM

Quote:

Originally Posted by Heinz

I did an assessment on this dot point. Hope it helps

(i think i got full marks for it)

dude you're my legend

thank you so much!

mr EaZy · 7 Sep 2004, 12:00 PM

Hey, do we need to know the products of dilute aqueous brine in electrolysis as opposed to concentrateed?

Heinz · 7 Sep 2004, 2:05 PM

Quote:

Originally Posted by mr EaZy

Hey, do we need to know the products of dilute aqueous brine in electrolysis as opposed to concentrateed?

The syllabus say that we should "analyse information from secondary sources to predict and explain the different products of the electrolysis of aqueous and molten sodium chloride" so i assume we need to know both dilute and aqueous.

mr EaZy · 2 Oct 2004, 5:41 AM

the thing is both dilute and concentrated solutions ARE Aqueous!
i was asking about "dilute and concentrated" not "dilute and aqeous"!

nesstar · 2 Oct 2004, 1:10 PM

i think its good to understand the difference between dilute and conc brine...but id say its more important to know conc, considering thats what they use in the processes we learnt...but it can't hurt to know both...

30 Aug 2004, 4:54 AM	#1 (permalink)
04er ... HSC: 2004 Gender: Male Location: Sydney Join Date: Jan 2004 Posts: 934 Last Activity: Today, 2:54 PM	Sodium Chloride Electrolysis You can hide this advertisement by registering. Hey we are doing a practical where we carry out electrolysis of sodium chloride, to identify, compare and explain the different products produced with dilute and concentrated salt solutions. Does anyone have a copy of this (or a similar) practical? If you do, could you please explain why oxygen and hydrogen are produced when dilute NaCl is electrolysed and why chlorine and hydrogen are produced with concentrated NaCl? Anything would be greatly appreciated. __________________ Law/Commerce (Finance) V @ USyd

2 Oct 2004, 1:10 PM	#7 (permalink)
nesstar Member Location: Sydney Join Date: May 2004 Posts: 140 Last Activity: 26 Feb 2005, 10:39 AM	i think its good to understand the difference between dilute and conc brine...but id say its more important to know conc, considering thats what they use in the processes we learnt...but it can't hurt to know both... __________________ Class of 04 UAI: 98.45 Advanced Science @ USYD Steps to Success: Aim high, expect low, be happy!

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7 Sep 2004, 12:00 PM	#4 (permalink)
mr EaZy Magniloquent Member HSC: 2004 Gender: Male Location: punchbowl bro- its the best place to live ! Join Date: May 2004 Posts: 1,710 Last Activity: 8 Dec 2009, 2:50 PM	Hey, do we need to know the products of dilute aqueous brine in electrolysis as opposed to concentrateed?

2 Oct 2004, 5:41 AM	#6 (permalink)
mr EaZy Magniloquent Member HSC: 2004 Gender: Male Location: punchbowl bro- its the best place to live ! Join Date: May 2004 Posts: 1,710 Last Activity: 8 Dec 2009, 2:50 PM	the thing is both dilute and concentrated solutions ARE Aqueous! i was asking about "dilute and concentrated" not "dilute and aqeous"!