[Catalist] Nanotechnology support for year 11 - colloidal gold

[Ann Moseley]

Yes please! Would love a copy of this prac :-)
On 10/01/2016 12:15 pm, "Leon Harris" <leon at quoll.com> wrote:

> Greetings to one and all. Hope you have had a restful holiday.
> One weakness of the Nanotechnology section of Year 11 Chemistry is that it
> is very weak on lab components.
> To help support this aspect of the course, I have designed and researched
> a cheap practical demonstrating colloidal gold and some of its properties.
> There is a nice canned prelab of calculations, and the whole thing should
> take 25 to 30 minutes of class time to perform (10 minutes to complete the
> doing part of the actual experiment). The key advantage of this lab is that
> I have found a cheap source of reagents for it, and the reagent cost per
> class group to perform is something like $1.60 to $2. I was proud of that.
> It is robust, works great in my shed, and a rich learning experience (the
> colours are divine)!
>
> If you would like a copy of this, please email me off list. (It is against
> policy to send attachments, I'm afraid, and I don't want to unintentionally
> annoy any non-chemists on our list.
>
> Cheers,
> Leon
>
>
>
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