Chemistry Department - GAC

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Yah sure 👍👌👌👍
10/06/2020

Yah sure 👍👌👌👍

Laughing gas ?He He He 😆😆😆
10/06/2020

Laughing gas ?He He He 😆😆😆

10/06/2020
Volhard Method : Jacob Volhard (1834-1910) This is an indirect method for chloride determination where an excess amount ...
29/05/2020

Volhard Method :

Jacob Volhard (1834-1910) This is an indirect method for chloride determination where an excess amount of standard Ag+ is added to the chloride solution containing Fe3+ as an indicator. The excess Ag+ is then titrated with standard SCN- solution untill a red color is obtained which results from the reaction:

Fe3+ + SCN- ► Fe(SCN)2+

The indicator system is very sensitive and usually good results are obtained. The medium should be acidic to avoid the formation of Fe(OH)3 However, the use of acidic medium together with added SCN- titrant increase the solubility of the precipitate leading to significant errors. This problem had been overcome by two main procedures.

Watch lead iodide turn into bright golden glitter in this awesome chemistry experiment known as the 'Golden Rain Reactio...
23/05/2020

Watch lead iodide turn into bright golden glitter in this awesome chemistry experiment known as the 'Golden Rain Reaction'.

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C MUTLUR
Chidambaram
608102

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04144231771

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