Australia's Science Forum

also when I look on the SDS for various strengths under the composition heading there is no mention of acid

Good day all In The Laboratory on Pg 33, to make Copper Sulphate 0.2M solution requires the addition of 15mL of 0.1M Sulphuric acid. On pg 37 to make a saturated solution, no sulphuric acid is added. I also have a typed out list titled Preparing Solutions possibly downloaded from here, that gives th...

find even more staff that want to go on an overnight trip with students and find funds to send them.

small price to pay for being AWESOME
Well done, the kids must be so proud

that is an excellent question, what concentration of other acid do you use and does it take the same time?

I am going to raise this with the HT

Thank you for the advice

follow on question....

the solid/precipitate, what is it and does it go straight in the normal bin?

feeling dopey
Thanks

Thank you Labbie

Can anyone help me with the disposal method of the waste products after this Senior Science prac? I have beakers of 2M Nitric acid with disolved calcium from the bone in it, what do I do with it? MSDS says must be disposed of as hazardous waste CSIS says (I think) bring to pH 8-10 and sewer the Risk...

Liverpool.. Live Inner West Syd but travel to Sth Coast, can easily go your way rather than coast rd.

I would love one and would be happy to drop the other to Oxley College when we head that way in a few weeks too

Hi Rita,
we are doing this too and the set up sheet I was given says two different coloured counters 15:100

I found it all organised and labelled in a box, I have recently inherited a very well organised workplace....feeling lucky

I unplated it and put back in the pressure cooker and when I re plated they are great so I guess it was "undercooked"

Thank you Graham for the 60 C. I was trying to pour it when it was cooler, like body temp

Thanks for the replies the first batch looks transluscent but the story goes downhill from there.... maybe I didnt leave it long enough to dissolve properly or overcooked it? still got plenty more to do so it will be trial and error as suggested, I'm in a new school so I hope this isn't a deal break...

If anyone could help I would appreciate it- my agar plates looks cloudy. I can see tiny particles suspended I am using 2g vegemite 1g bonox 5g NaCl 5g peptone 15g agar as per previous lab tech recipe mix on magnetic stirrer on heat then pressure cook for 15min in conical flask Q- am I meant to let i...

I read an article in NEXUS over easter regarding bromine in the food supply and they recommended TAKING 2 drops of Lugols Iodine daily

I didn't think too much about it after the mag was put down but this jogged my memory.....

I e-mailed Greenacre last week and received no reply, not even a thanks but no thanks .......

Thank you for your prompt response and letting us access what is a lot of work.....still daunting though, going to be a busy week

Hi coxy, would you mind if I had a look at your list?
we don't have any such thing and I have been instructed to start one

oh I am so excited to be heading to St Mary's tomorrow.....even missing HS orientation with my daughter! getting there and back should be interesting though considering I lost my keys to my car today :cry2: one big messy prac to clean up, mop the floor, tell someone who cares that the fume hood is l...

Association of Science Education Technicians

Hi Margaret,
I don't have the details
sherene.klein@stmarouns.nsw.edu.au

Thanks