User:Andrew K Farag/Notebook/CHEM-490/2014/09/18: Difference between revisions
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==Description== | ==Description== | ||
*Synthesis of new BSA solution from [[User:Andrew K Farag/Notebook/CHEM-490/2014/09/08|the first day]]'s procedure. | *Synthesis of new BSA solution from [[User:Andrew K Farag/Notebook/CHEM-490/2014/09/08|the first day]]'s procedure. | ||
*Sonication of the HgNO3 solution as it started to precipitate. The settings were 31C for 10 mins. | *Sonication of the HgNO3 solution as it started to precipitate. | ||
**The settings were 31C for 10 mins. There was still precipitate | |||
**I added another 5 minutes on the same settings. There was still precipitate. | |||
*I checked on the mixture that was in the hood from [[User:Andrew K Farag/Notebook/CHEM-490/2014/09/16|Tuesday]] | *I checked on the mixture that was in the hood from [[User:Andrew K Farag/Notebook/CHEM-490/2014/09/16|Tuesday]] | ||
**The temperature was around 85, not as I planned it to be. | **The temperature was around 85, not as I planned it to be. | ||
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**turned the variac off, to add the sodium sulfide later | **turned the variac off, to add the sodium sulfide later | ||
*Synthesis of Sodium Sulfide | *Synthesis of Sodium Sulfide | ||
**FW:240.15 | |||
**to make 4mL of 20 mM of sodium sulfide | |||
***240.18g/mol*0.02mol/L*0.004L=0.0192144g | |||
***0.0191g was measured | |||
*Addition of Sodium Sulfide to solution | |||
**Sodium Sulfide was added to the mixture | |||
**stirred vigorously for 15 mins | |||
**no heat involved | |||
**the final mixture was put in a dark falcon tube and saved | |||
**The color of the final mixture was still dark. |
Revision as of 15:19, 18 September 2014
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Description
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