Linear Double Bond Lab Report

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The way elements bond to one another depends primarily on their valence electron count. Their shapes vary with the amount of elements included. This lab is focused on covalent compounds, which are composed of nonmetals. A bent shape occurs when one element shares two electrons with two other elements. A trigonal pyramidal occurs when one element shares three electrons with three other elements. A tetrahedral occurs when one element shares four electrons with four other elements. A linear double bond occurs when one element shares four electrons with two other elements. A linear single bond occurs when one element shares one electron with another element. The type of compound is determined by whether or not it is symmetrical or asymmetrical.…show more content…
Determined the amount of valence electrons of each element. Drew the dot structure of the molecule on the data table by sharing unpaired electrons from one element to the other. Determined the shape of the molecule, then recorded it in the data table. Determined if the compound was symmetrical or asymmetrical, then recorded it in the data table. Calculated the electronegativity difference of the elements, then recorded it in the data table. Determined of the type of bond was polar or nonpolar based on the electronegativity difference, then recorded it in the data table. Repeated steps 1 to 7 ten times Guided Questions and Answers Data Analysis Q: From the shape of the molecular models constructed, explain the relationship between the shape and the polarity of the molecule. A: If the shape of the molecule has an even number of elements, it is nonpolar because it is symmetrical. If the shape of the molecule has an odd number of elements, it is polar because it is asymmetrical. Q: What evidence exists to show that covalent bonds are stronger than either dipole-dipole attractions or hydrogen…show more content…
The molecule is nonpolar because it is symmetrical. Application Questions. Drawing dot diagrams. Drawing Conclusion Q: Provide a concluding statement explaining the relationship of bond type, electronegativity difference, and the shape of molecule. A: If the electronegativity difference is less than 0.4, the bond is nonpolar. If the electronegativity difference is greater than 0.4, the bond is polar. The shape of the molecule determines if the compound is polar or nonpolar. If the molecule is asymmetrical, the compound is polar. If the molecule is symmetrical, the compound is nonpolar. Conclusion Throughout the course of this lab, I have learned many things. One of the things I have learned include how to determine the polarity of compounds and bonds. I have also determined the difference between covalent and ionic compounds. Covalent compounds are composed of nonmetals. Ionic compounds are composed of nonmetals and metals. Furthermore, I have learned how to draw the dot structures of molecules, as well as identify their shapes. In summation, this lab has allowed me to understand the concept of chemical bonding
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