Separation of Group I and Group II cations PDF

Title	Separation of Group I and Group II cations
Course	Medical Technology
Institution	Centro Escolar University
Pages	1
File Size	56.5 KB
File Type	PDF
Total Downloads	683
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Summary

ANALYTICAL CHEMISTRYComplete the schematic diagram below showing the separation of Group I and Group II cations.𝐀𝐠+ ,𝐏𝐛𝟐+,𝐇𝐠𝟐𝟐+,𝐇𝐠𝟐+,𝐁𝐢𝟑+,𝐂𝐮𝟐+,𝐂𝐝𝟐+,𝐀𝐬𝟑+,𝐒𝐛𝟑+ 𝐚𝐧𝐝 𝐒𝐧𝟒+PRECIPITATE CENTRIFUGE CONTAIN IONS𝐀𝐠+ ,𝐏𝐛𝟐+,𝐇𝐠𝟐𝟐+ 𝐇𝐠𝟐+,𝐁𝐢𝟑+,𝐂𝐮𝟐+,𝐂𝐝𝟐+,𝐀𝐬𝟑+,𝐒𝐛𝟑+ 𝐚𝐧𝐝 𝐒𝐧𝟒++2-3 M HCl centrifugateAcidified solution + t...

Description

ANALYTICAL CHEMISTRY Complete the schematic diagram below showing the separation of Group I and Group II cations. 𝐀𝐠 + , 𝐏𝐛𝟐+ , 𝐇𝐠𝟐𝟐+ , 𝐇𝐠 𝟐+, 𝐁𝐢𝟑+ , 𝐂𝐮𝟐+ , 𝐂𝐝𝟐+, 𝐀𝐬 𝟑+ , 𝐒𝐛𝟑+ 𝐚𝐧𝐝 𝐒𝐧𝟒+

+2-3 M HCl centrifugate

PRECIPITATE

CENTRIFUGE CONTAIN IONS

In the forms of chlorides

𝐀𝐠 + , 𝐏𝐛 𝟐+, 𝐇𝐠 𝟐𝟐+

𝐇𝐠 𝟐+ , 𝐁𝐢𝟑+, 𝐂𝐮𝟐+ , 𝐂𝐝𝟐+ , 𝐀𝐬𝟑+ , 𝐒𝐛𝟑+ 𝐚𝐧𝐝 𝐒𝐧𝟒+

Acidified solution + thioacetamide solution water bath

PRECIPITATES The function of acidic solution in precipitating group II is to decrease ionization of H2 S so that the solubility product of II group is exceeded.

In the forms of sulfides

𝐇𝐠 𝟐+, 𝐁𝐢𝟑+, 𝐂𝐮𝟐+ , 𝐂𝐝𝟐+ , 𝐀𝐬𝟑+ , 𝐒𝐛𝟑+, 𝐒𝐧𝟒+...