Textbook Question
Draw the Lewis structure for each organic compound from its condensed structural formula. c. CH3COCH3
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Ch.9 - Chemical Bonding I: The Lewis Model
Chapter 9, Problem 101
Draw the Lewis structure for HCSNH2. The carbon and nitrogen atoms are bonded together, and the sulfur atom is bonded to the carbon atom. Label each bond in the molecule as polar or nonpolar.
Verified step by step guidance1
<Identify the total number of valence electrons in the molecule. Hydrogen (H) has 1 valence electron, carbon (C) has 4, sulfur (S) has 6, and nitrogen (N) has 5. Calculate the total by adding these together.>
<Arrange the atoms in the specified order: H-C-S-N-H-H. Connect the atoms with single bonds initially, ensuring that C is bonded to S and N, and N is bonded to the two H atoms.>
<Distribute the remaining valence electrons to satisfy the octet rule for each atom, starting with the most electronegative atoms (S and N). Remember that hydrogen only needs 2 electrons.>
<Check the formal charges on each atom to ensure the most stable structure. Adjust the bonding if necessary to minimize formal charges, possibly by forming double bonds.>
<Determine the polarity of each bond by comparing the electronegativity of the bonded atoms. A bond is polar if there is a significant difference in electronegativity between the two atoms. Label each bond as polar or nonpolar based on this analysis.>
Related Practice
Textbook Question
Draw the Lewis structure for each organic compound from its condensed structural formula. e. CH3CHO
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Textbook Question
Use Lewis structures to explain why Br3- and I3- are stable, while F3- is not.
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Textbook Question
Draw the Lewis structure for urea, H2NCONH2, one of the compounds responsible for the smell of urine. (The central carbon atom is bonded to both nitrogen atoms and to the oxygen atom.) Does urea contain polar bonds? Which bond in urea is most polar?
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Open Question
Draw Lewis structures for each free radical implicated in this theory of aging: a. O2- b. O-
Textbook Question
Some theories of aging suggest that free radicals cause certain diseases and perhaps aging in general. As you know from the Lewis model, such molecules are not chemically stable and will quickly react with other molecules. According to certain theories, free radicals may attack molecules within the cell, such as DNA, changing them and causing cancer or other diseases. Free radicals may also attack molecules on the surfaces of cells, making them appear foreign to the body's immune system. The immune system then attacks the cells and destroys them, weakening the body. Draw Lewis structures for each free radical implicated in this theory of aging. c. OH
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