A level chemistry: colorimetry

i was wondering if someone could explain how we can measure concentration of transition metal ions using colorimetry because i am completely stuck :s

Reply 1

coolgamer

11

Original post by jaejaecassie

i was wondering if someone could explain how we can measure concentration of transition metal ions using colorimetry because i am completely stuck :s

As or A2
and ocr?

Reply 2

smozsolution

9

Add an appropriate ligand to intensify colour
Make up solutions of known concentration
Measure absorption or transmission of known concentration
Plot graph of results or calibration curve
Measure absorption of unknown and compare

I'm presuming that's for AQA A2 but if I'm wrong it may still be helpful, hope this helps :smile:

Reply 3

jaejaecassie

OP

Original post by smozsolution

Add an appropriate ligand to intensify colour
Make up solutions of known concentration
Measure absorption or transmission of known concentration
Plot graph of results or calibration curve
Measure absorption of unknown and compare

I'm presuming that's for AQA A2 but if I'm wrong it may still be helpful, hope this helps :smile:

Yes thats the one i was looking for, had notes for it from my teacher but lost it, thanks so much! :biggrin:

Reply 4

Monkey D. Luffy

7

Original post by smozsolution

Add an appropriate ligand to intensify colour
Make up solutions of known concentration
Measure absorption or transmission of known concentration
Plot graph of results or calibration curve
Measure absorption of unknown and compare

I'm presuming that's for AQA A2 but if I'm wrong it may still be helpful, hope this helps :smile:

Them goalby notes :colone: