
Concept explainers
(a)
Interpretation:
The Lewis structure for malic acid needs to be drawn.
Concept Introduction:
The Lewis structure is drawn considering the arrangement if atoms in a molecule. The total number of valence electrons needs to be calculated first. The distribution of electrons takes place in such a way that all the atoms have complete octets. The lone pair of electrons or electrons not involved in the bonding are placed on the symbol of the atoms. The bonding electrons are represented by line or bond between the two atoms.
(b)
Interpretation:
The molecular shape of the atoms A to C needs to be determined.
Concept Introduction:
The shape of the molecule around an atom can be determined from the VSEPR theory. According to this theory, the shape of the molecule depends on its geometry and number of lone pair of electrons around an atom.
The geometry of a molecule depends on its hybridization as follows:
Lone pairs | Bond pairs | Molecular geometry | Shape |
0 | 2 | Linear | Linear |
0 | 3 | Trigonal planar | Trigonal planar |
1 | 2 | Trigonal planar | Bent |
0 | 4 | Tetrahedral | Tetrahedral |
1 | 3 | Tetrahedral | Trigonal pyramidal |
2 | 2 | Tetrahedral | Bent |

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Chapter 4 Solutions
General, Organic, and Biological Chemistry - 4th edition
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- Draw the major product of the following reaction. Do not draw inorganic byproducts. H3PO4 OHarrow_forwardPredict the major products of this organic reaction: HBr (1 equiv) Δ ? Some important notes: • Draw the major product, or products, of this reaction in the drawing area below. • You can draw the products in any arrangement you like. • Pay careful attention to the reaction conditions, and only include the major products. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. • Note that there is only 1 equivalent of HBr reactant, so you need not consider the case of multiple additions. Explanation Check X ©2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacyarrow_forwardFor the structure below, draw the resonance structure that is indicated by the curved arrow(s). Be sure to include formal charges. :ÖH Modify the second structure given to draw the new resonance structure. Include lone pairs and charges in your structure. Use the + and - tools to add/remove charges to an atom, and use the single bond tool to add/remove double bonds.arrow_forward
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- Draw everything on a piece of paper outlining the synthesis from acetaldehyde to 2 cyclopentene carboxaldehyde using carbon based reagants with 3 carbons or fewers. Here is the attached image.arrow_forwardManoharan Mariappan, FR.D., 34) Complete the following reaction starting from hex-1-yne proceeding via different substitution reactions forming 2-heptanone. (25 pts). A Sia₂BH H₂O₂ NaOH Br D Mechanism for reaction D - ether-cleavage: 10 B Ph-MgCI, THF H₁₂O+ D HBr (XS) C TsCl, Py CH3-CH2-CH2-ONaarrow_forwardIn the table below, the correct structure for (2R)-3-methylpentan-2-ol (IUPAC name) can be represented by the letter OH OH HE > ' ÕH C B OH D A/ E OHarrow_forward
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