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indicators..
hiii 
just wondered if someone could help me
i'm writing about complexometric titrations
..and i wondered why the indicator used changes colour when complexed or uncomplexed?
for example, eriochrome black t is blue when uncomplexed and red when complexed (eg. with calcium ions)
any help would be appreciated! im all confuseeed
thanks!
just wondered if someone could help me
i'm writing about complexometric titrations
..and i wondered why the indicator used changes colour when complexed or uncomplexed?
for example, eriochrome black t is blue when uncomplexed and red when complexed (eg. with calcium ions)
any help would be appreciated! im all confuseeed
thanks!
paint-paradise
hiii
just wondered if someone could help me
i'm writing about complexometric titrations
..and i wondered why the indicator used changes colour when complexed or uncomplexed?
for example, eriochrome black t is blue when uncomplexed and red when complexed (eg. with calcium ions)
any help would be appreciated! im all confuseeed
thanks!
just wondered if someone could help me
i'm writing about complexometric titrations
..and i wondered why the indicator used changes colour when complexed or uncomplexed?
for example, eriochrome black t is blue when uncomplexed and red when complexed (eg. with calcium ions)
any help would be appreciated! im all confuseeed
thanks!
I am thinking that when it binds with calcium ions, there should be some energy transitions, hence photons are emitted/absorbed, hence the colour change(some wavelengths of light now get absorbed differently)
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