{"id":144110,"date":"2024-09-24T11:09:13","date_gmt":"2024-09-24T11:09:13","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=144110"},"modified":"2024-09-24T11:09:16","modified_gmt":"2024-09-24T11:09:16","slug":"determine-the-electron-geometry","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/09\/24\/determine-the-electron-geometry\/","title":{"rendered":"Determine the electron geometry"},"content":{"rendered":"\n<p>Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO3.<br>A) eg = trigonal pyramidal, mg = bent, nonpolar<br>B) eg = tetrahedral, mg = tetrahedral, nonpolar<br>C) eg = trigonal bipyramidal, mg = trigonal pyramidal, nonpolar<br>D) eg = tetrahedral, mg = trigonal pyramidal, polar<br>E) eg = trigonal planar, mg = trigonal planar, nonpolar<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>To determine the electron geometry (eg), molecular geometry (mg), and polarity of sulfur trioxide (SO\u2083), we need to analyze its Lewis structure and molecular shape.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lewis Structure of SO\u2083<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Valence Electrons Calculation<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sulfur (S) is in Group 16 and has 6 valence electrons.<\/li>\n\n\n\n<li>Each oxygen (O) is also in Group 16, contributing 6 valence electrons. Therefore, 3 oxygen atoms contribute a total of (3 \\times 6 = 18) valence electrons.<\/li>\n\n\n\n<li>Total valence electrons = (6 + 18 = 24).<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Drawing the Structure<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sulfur is the central atom with three oxygen atoms bonded to it. Each oxygen atom forms a double bond with sulfur to fulfill the octet rule, leading to the structure: O=S=O and O on either side.<\/li>\n\n\n\n<li>All atoms have complete octets, and sulfur is able to expand its octet since it is in period 3 of the periodic table.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Electron and Molecular Geometry<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Electron Geometry<\/strong>: The presence of three double bonds around the central sulfur atom (with no lone pairs on sulfur) gives SO\u2083 a trigonal planar electron geometry. This is characterized by bond angles of approximately 120 degrees.<\/li>\n\n\n\n<li><strong>Molecular Geometry<\/strong>: Since there are no lone pairs on the sulfur atom, the molecular geometry is also trigonal planar. Thus, both the electron geometry and molecular geometry for SO\u2083 are trigonal planar.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Polarity<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Polarity<\/strong>: To determine polarity, we examine the symmetry of the molecule. SO\u2083 is symmetrical with three identical S=O bonds arranged at 120-degree angles. The dipole moments from each bond cancel out due to this symmetry, making the overall molecule nonpolar.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Conclusion<\/h3>\n\n\n\n<p>Based on the analysis, the correct answer is:<\/p>\n\n\n\n<p><strong>E) eg = trigonal planar, mg = trigonal planar, nonpolar<\/strong>.<\/p>\n\n\n\n<p>This conclusion is based on the molecular structure of SO\u2083, where the arrangement of bonds and absence of lone pairs lead to a nonpolar characteristic due to the symmetrical geometry.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO3.A) eg = trigonal pyramidal, mg = bent, nonpolarB) eg = tetrahedral, mg = tetrahedral, nonpolarC) eg = trigonal bipyramidal, mg = trigonal pyramidal, nonpolarD) eg = tetrahedral, mg = trigonal pyramidal, polarE) eg = trigonal planar, mg = trigonal planar, nonpolar The Correct [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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