Australia's Science Forum

Good afternoon all, A Laboratory Technician position has opened up at Presbyterian Ladies College Sydney situated in Croydon, commencing 2021. Please see details of position at - https://plc.recruitpack.com/jobDetails?selectJob=190&ppt=a697280f or Applications close 3.00 pm, Friday 27 November 2...

Hi all, Happy New Year!!! We have the following textbooks that we would love to donate - Oxford Insight Science 2015 books (62 in total) 2 x yr 7 2 x workbook 1 x yr 8 1 x workbooks 12 x yr 9 11 x workbooks 12 x yr 10 15 x workbooks 1 x iScience Nelson 2013 book Please email me at ctzavellas@plc.nsw...

Hey Macca,

Did you guys use both the method of matching the color by eye and colorimeter for this prac?

Carlie

Hey bigmac,

Which textbook is your chem teacher using, as we too are getting some weird results? Could you please find out for me.
Thnks

Carlie

Just a follow on from last weeks AgNO3 drama. Our deionized water is back up and running now in the lab. Just be aware that if you are purchasing distilled water or deionized water in bulk from companies who advertise it as such, be careful as the water may have chlorine ions present in it, therefor...

Hi all,

After purchasing new AgNO3 and then testing it with distilled water, the silver nitrate is no longer the culprit. We then purchased coles demineralized water (deionized water) and we had success.

Solution is clear as crystal.

One happy lab tech.

Thanks for all of your feedback and jokes

Hi all, I made a solution of 0.05M Silver nitrate solution and as I added the deionized water it went cloudy. I know that it should be clear. I have changed the filters for our reverse osmosis system but still, have the problem. I purchased distilled water to test with the solid AgNO3 and it too wen...

So sorry to hear this Labby. Never met Max in person but when we spoke on the phone he was always very helpful, polite and had many stories to tell. RIP