Investigating a metallic element

A general discussion and Q & A forum.
Post Reply
Marama T
Posts: 214
Joined: 01 Aug 2017, 12:19
Job Title: Laboratory technician
School: College
State/Location: NSW

Investigating a metallic element

Post by Marama T »

Investigating a metallic element Pearson 10 p. 127 The teacher thinks the agar should be clear after addition of the AgNO3, but ours is going a purple gray colour. Anyone know about this?
bigmack
Posts: 816
Joined: 15 Dec 2015, 10:49
Job Title: Lab Technician
School: FCAC
State/Location: QLD

Re: Investigating a metallic element

Post by bigmack »

Did you use distilled water to make the Agar . If you used Tap water , could be Chlorine reacting with the Silver Nitrate .

EDIT: I have not done that Prac myself , was just a thought .
Last edited by bigmack on 20 Jul 2021, 13:38, edited 1 time in total.
User avatar
Labbie
Posts: 3234
Joined: 28 Nov 2006, 10:00
Job Title: Retired
Suburb: At Home
State/Location: NSW

Re: Investigating a metallic element

Post by Labbie »

Well done Bigmack
Regards Labbie

Lab Manager/Lab Tech, mind reading etc etc
Now retired :wub:
Marama T
Posts: 214
Joined: 01 Aug 2017, 12:19
Job Title: Laboratory technician
School: College
State/Location: NSW

Re: Investigating a metallic element

Post by Marama T »

I put out distilled water, but I'll check with the teacher. Thanks for your time.
Post Reply