User:Keyun Wang/Notebook/Experimental Biological Chemistry I/2013/01/29
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Current revision (14:53, 5 February 2013) (view source) (→Procedure) |
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| - | |style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> | + | |style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> Experimental Biochemistry II</span> |
|style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html> </html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}} | |style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html> </html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}} | ||
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| - | == | + | ==Purpose== |
| - | * | + | * Start making sample Silver film with proposed protocol |
| + | |||
| + | ==Procedure== | ||
| + | * 2.87g of AgNO<sub>3</sub> was weighted out and placed in a 50mL Erylenmeyer flask. | ||
| + | * 0.3g of Laponite clay was weighted out and placed in same Erlenmeyer flask as above. | ||
| + | * The 2.87g of AgNO<sub>3</sub> was calculated in the following ways: | ||
| + | Cationic exchange capacity of Laponite: 0.55 milliequivilient/gram | ||
| + | Weight % of silver to be exchanged in Clay: 95% | ||
| + | Calculation is shown as follows: | ||
| + | 0.3 g LMT × (55 meqv/100 g LMT) × (1 mol Ag<sup>+</sup>/1000 meqv) × (107.86 g Ag<sup>+</sup>/1 mol Ag<sup>+</sup>) × (1 mol Ag<sup>+</sup>/1 mol AgNO<sub>3</sub>) × (1 mol AgNO<sub>3</sub>/169.87 g AgNO<sub>3</sub>) × 95% = 0.00009953 g AgNO<sub>3</sub> | ||
| + | * 10mL of 50/50 water/ethanol solution was made by combining 5mL of water and 5mL of ethanol in a 10mL graduated cylinder. | ||
| + | * 10mL of water/ethanol solution was poured into Erylenmeyer flask along with a stir bar. | ||
| + | * The Erylenmeyer flask containing the solution is covered with aluminum foil and placed on stir plate under fume hood for 24 hours. | ||
| + | |||
| + | ==Observations== | ||
| + | * The clay and AgNO<sub>3</sub> solution appeared white in color during stirring. | ||
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Purpose
Procedure
Cationic exchange capacity of Laponite: 0.55 milliequivilient/gram Weight % of silver to be exchanged in Clay: 95% Calculation is shown as follows: 0.3 g LMT × (55 meqv/100 g LMT) × (1 mol Ag+/1000 meqv) × (107.86 g Ag+/1 mol Ag+) × (1 mol Ag+/1 mol AgNO3) × (1 mol AgNO3/169.87 g AgNO3) × 95% = 0.00009953 g AgNO3
Observations
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