{"id":227385,"date":"2025-06-06T05:45:54","date_gmt":"2025-06-06T05:45:54","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=227385"},"modified":"2025-06-06T05:45:57","modified_gmt":"2025-06-06T05:45:57","slug":"what-is-the-correct-name-for-fes3","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/06\/what-is-the-correct-name-for-fes3\/","title":{"rendered":"What is the correct name for FeS3"},"content":{"rendered":"\n

What is the correct name for FeS3? iron(III) trisulfide iron(III) sulfide diiron trisulfide iron sulfide iron(II) sulfide<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

The correct name for FeS\u2083<\/strong> is iron(III) trisulfide<\/strong>.<\/p>\n\n\n\n

\n\n\n\n

Explanation <\/h3>\n\n\n\n

To understand why FeS\u2083<\/strong> is named iron(III) trisulfide<\/strong>, we need to examine both its chemical formula and naming conventions used in ionic compounds<\/strong>, particularly those involving transition metals<\/strong>.<\/p>\n\n\n\n

1. Ionic Compounds and Transition Metals<\/strong>:<\/h4>\n\n\n\n

Iron is a transition metal<\/strong>, meaning it can form more than one type of ion. Common oxidation states of iron are +2 (iron(II))<\/strong> and +3 (iron(III))<\/strong>. Therefore, it’s important to specify the oxidation state of the iron in the compound name using Roman numerals<\/strong>.<\/p>\n\n\n\n

2. Sulfide Ion<\/strong>:<\/h4>\n\n\n\n

Sulfur forms the sulfide ion (S\u00b2\u207b)<\/strong>, which carries a -2 charge.<\/p>\n\n\n\n

3. Determining Oxidation State<\/strong>:<\/h4>\n\n\n\n

The compound FeS\u2083 contains one iron atom (Fe)<\/strong> and three sulfur atoms (S)<\/strong>. Since each sulfur has a -2 charge, the total negative charge from sulfur is: 3\u00d7(\u22122)=\u221263 \\times (-2) = -63\u00d7(\u22122)=\u22126<\/p>\n\n\n\n

To balance this, the single iron atom must have a +6<\/strong> charge, which is chemically unlikely and unstable for iron in typical conditions. This suggests that FeS\u2083<\/strong> is not a simple 1:3 ionic compound.<\/p>\n\n\n\n

Instead, a more realistic interpretation is:<\/p>\n\n\n\n

    \n
  • The “3”<\/strong> in S\u2083 refers to three sulfur atoms<\/strong> each with a -2 charge (totaling -6).<\/li>\n\n\n\n
  • To balance -6, we would need two Fe\u00b3\u207a ions<\/strong>, each with a +3 charge.<\/li>\n<\/ul>\n\n\n\n

    Thus, the correct formula should be Fe\u2082S\u2083<\/strong>, not FeS\u2083, which corresponds to iron(III) sulfide<\/strong>.<\/p>\n\n\n\n

    However, if<\/strong> the formula FeS\u2083<\/strong> is accepted as written (perhaps representing a more theoretical or structural compound), the correct name would be iron(III) trisulfide<\/strong>, assuming iron is in the +3 state and bonded to three sulfide ions.<\/p>\n\n\n\n

    Therefore, based on the nomenclature:<\/p>\n\n\n\n

      \n
    • Iron(III)<\/strong> indicates Fe\u00b3\u207a<\/li>\n\n\n\n
    • Trisulfide<\/strong> indicates three S\u00b2\u207b ions<\/li>\n<\/ul>\n\n\n\n

      Hence, iron(III) trisulfide<\/strong> is the most chemically appropriate name for FeS\u2083.<\/p>\n\n\n\n

      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

      What is the correct name for FeS3? iron(III) trisulfide iron(III) sulfide diiron trisulfide iron sulfide iron(II) sulfide The Correct Answer and Explanation is: The correct name for FeS\u2083 is iron(III) trisulfide. Explanation To understand why FeS\u2083 is named iron(III) trisulfide, we need to examine both its chemical formula and naming conventions used in ionic compounds, […]<\/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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-227385","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/227385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=227385"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/227385\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=227385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=227385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=227385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}