Experiment Details - Experimentium

Experiment of Thermochemistry A Details

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Experimental Protocol

Chemical Table

(Representation) Prepare your chemical table including the materials you use in the experiment.  Here is a general template that you may use.
<table>
<tbody>
<tr>
<td width="83">Chemical Name</td>
<td width="84">Chemical Formula</td>
<td width="78">Molar Mass (g/mol)</td>
<td width="78">Hazards</td>
<td width="292">Reference</td>
<td width="56">PPE</td>
</tr>
<tr>
<td width="83"><strong><u>Sodium Chloride</u></strong></td>
<td width="84"><strong><u>NaCl</u></strong></td>
<td width="78"><strong><u>58.5</u></strong></td>
<td width="78"><strong><u>Skin irritation</u></strong></td>
<td width="292"><a href="https://fscimage.fishersci.com/msds/21105.htm"><strong>https://fscimage.fishersci.com/msds/21105.htm</strong></a></td>
<td width="56"><strong> </strong></td>
</tr>
<tr>
<td width="83"><strong> </strong></td>
<td width="84"><strong> </strong></td>
<td width="78"><strong> </strong></td>
<td width="78"><strong> </strong></td>
<td width="292"><strong> </strong></td>
<td width="56"><strong> </strong></td>
</tr>
<tr>
<td width="83"><strong> </strong></td>
<td width="84"><strong> </strong></td>
<td width="78"><strong> </strong></td>
<td width="78"><strong> </strong></td>
<td width="292"><strong> </strong></td>
<td width="56"><strong> </strong></td>
</tr>
<tr>
<td width="83"><strong> </strong></td>
<td width="84"><strong> </strong></td>
<td width="78"><strong> </strong></td>
<td width="78"><strong> </strong></td>
<td width="292"><strong> </strong></td>
<td width="56"><strong> </strong></td>
</tr>
</tbody>
</table>

Equipment Table

Data Collection

Data Processing

<ol>
 	<li>(Representation) Provide the formula and chemical structure for table sugar.</li>
 	<li>(Analysis) Select all that apply. Table sugar is:
<table>
<tbody>
<tr>
<td width="177">An atom</td>
<td width="271">An ionic compound</td>
</tr>
<tr>
<td width="177">An element</td>
<td width="271">Soluble in water</td>
</tr>
<tr>
<td width="177">A molecule</td>
<td width="271">Able to react with itself</td>
</tr>
<tr>
<td width="177">A compound</td>
<td width="271">Only able to react with other materials</td>
</tr>
<tr>
<td width="177">An organic compound</td>
<td width="271">Crystalline</td>
</tr>
<tr>
<td width="177">An inorganic compound</td>
<td width="271"> Amorphous</td>
</tr>
</tbody>
</table>
</li>
 	<li>(Analysis) Select all that apply. Sodium nitrate is:
<table>
<tbody>
<tr>
<td width="177">An atom</td>
<td width="271">An ionic compound</td>
</tr>
<tr>
<td width="177">An element</td>
<td width="271">Soluble in water</td>
</tr>
<tr>
<td width="177">A molecule</td>
<td width="271">Able to react with itself</td>
</tr>
<tr>
<td width="177">A compound</td>
<td width="271">Only able to react with other materials</td>
</tr>
<tr>
<td width="177">An organic compound</td>
<td width="271">Crystalline</td>
</tr>
<tr>
<td width="177">An inorganic compound</td>
<td width="271"> Amorphous</td>
</tr>
</tbody>
</table>
</li>
 	<li>(Analysis) Select all that apply. Paper is:
<table>
<tbody>
<tr>
<td width="177">An atom</td>
<td width="271">An ionic compound</td>
</tr>
<tr>
<td width="177">An element</td>
<td width="271">Soluble in water</td>
</tr>
<tr>
<td width="177">A molecule</td>
<td width="271">Able to react with itself</td>
</tr>
<tr>
<td width="177">A compound</td>
<td width="271">Only able to react with other materials</td>
</tr>
<tr>
<td width="177">A mixture</td>
<td width="271">Crystalline</td>
</tr>
<tr>
<td width="177">An organic compound</td>
<td width="271"> Amorphous</td>
</tr>
<tr>
<td width="177">An inorganic compound</td>
<td width="271"></td>
</tr>
</tbody>
</table>
</li>
 	<li>(Analysis) For the black snake experiment, comment on whether the volume is increasing, decreasing, or remaining the same based on your observations.</li>
 	<li>(Analysis) Looking at the product of the black snake experiment, estimate its composition.</li>
 	<li>(Analysis) For each experiment, identify the experiment as spontaneous or non-spontaneous and provide your reasoning.</li>
 	<li>(Analysis) For each experiment, identify the experiment as endothermic (heat is absorbed to make a change) or exothermic (heat is given off in the process of a change) and provide your reasoning.</li>
 	<li>(Assumptions) Fill in the following table using the data and observations from your experiment:
<table>
<tbody>
<tr>
<td width="177">Assumptions made</td>
<td width="271">Testing the assumption</td>
<td width="224">If assumptions are wrong ...</td>
</tr>
<tr>
<td width="177">The distilled water is pure</td>
<td width="271">Evaporate it and check for residue</td>
<td width="224"></td>
</tr>
<tr>
<td width="177">Sugar is pure</td>
<td width="271"></td>
<td width="224"></td>
</tr>
<tr>
<td width="177"></td>
<td width="271"></td>
<td width="224"></td>
</tr>
<tr>
<td width="177"></td>
<td width="271"></td>
<td width="224"></td>
</tr>
<tr>
<td width="177"></td>
<td width="271"></td>
<td width="224"></td>
</tr>
</tbody>
</table>
</li>
</ol>

Discussion

Write a minimum one-page (12 font, single spaced) discussion on the experiment conducted this week.  <strong>The assignment will be graded on completeness, clarity of the explanations and the meaningful integration of the collected and calculated data.</strong> Correct grammar and appropriate format for the chemical formulae and chemical reactions is expected. <strong>You may use the outline included at the end of this document on how to build your essay to address each category.</strong>
<ol>
 	<li>(Analysis) Classify making caramel as a physical or chemical change and justify your choice.</li>
 	<li>(Analysis) Classify making the black snake as a physical or chemical change and justify your choice.</li>
 	<li>(Analysis) Classify the invisible ink experiment as a physical or chemical change and justify your choice.</li>
 	<li>(Analysis) Based on your observations, compare and contrast smell from the snake and the caramel experiments.</li>
 	<li>(Existing knowledge, research, and views) Identify and explain the role of baking soda in the black snake experiment.</li>
 	<li>(Analysis) Based on your observations, give a supported prediction as to whether the mass of the product would be greater or less than the starting material in each experiment.</li>
 	<li>(Analysis) Identify at least one factor that is important to control in making caramel.</li>
 	<li>(Existing knowledge, research, and views) List the 3 components of fire and identify each one in the black snake experiment. (HINT: it is possible to have more than one chemical in each category.)</li>
 	<li>(Existing knowledge, research, and views) List the 3 components of fire and identify each one in the invisible ink experiment.</li>
 	<li>(Analysis) Provide a supported argument for why drying the paper in the invisible ink experiment was necessary.</li>
 	<li>(Analysis) Identify any similarities between the fuels used in the three experiments.</li>
</ol>