A general discussion and Q & A forum.
tigger
Posts: 74 Joined: 20 Aug 2010, 12:54
Job Title: Lab tech
State/Location: ACT
Post
by tigger » 19 May 2011, 13:34
I have misplaced my copy of the laboratory
and need to make some up. can someone please help??
matchstick
Posts: 134 Joined: 27 Feb 2009, 09:07
Job Title: School Admin.Assistant
School: Strathfield South Public School
Suburb: Strathfield
State/Location: NSW
Post
by matchstick » 19 May 2011, 14:08
0.1M
15grams in 1 litre water
fibreweb
Posts: 620 Joined: 20 Jul 2006, 10:00
School: Oxley High School
Suburb: Tamworth
State/Location: NSW
Post
by fibreweb » 19 May 2011, 14:12
What molarity do you need?
Do you have NaI which has a molecular weight of 149.9 if so 15 gms in 1 Litre is 0.1 M
or NaI.2H2 O which has a molecular weight of 185.9 then 18.5 gms in 1 Litre is 0.1M
Hope this helps
Wendy
Ian
Posts: 575 Joined: 16 Oct 2006, 10:00
Job Title: Lab Assistant
School: Macarthur Anglican School
Suburb: Cobbitty
State/Location: NSW
Post
by Ian » 19 May 2011, 15:24
So, what do you use NaI for?
Ian