{"id":39371,"date":"2025-06-27T07:11:40","date_gmt":"2025-06-27T07:11:40","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=39371"},"modified":"2025-06-27T07:11:45","modified_gmt":"2025-06-27T07:11:45","slug":"what-is-the-formula-for-ironiii-sulfide","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/what-is-the-formula-for-ironiii-sulfide\/","title":{"rendered":"What is the formula for Iron(III) sulfide"},"content":{"rendered":"\n<p>What is the formula for Iron(III) sulfide? And why?<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The formula for Iron(III) sulfide is <strong>Fe\u2082S\u2083<\/strong>.<\/p>\n\n\n\n<p>Iron(III) indicates that iron is in the +3 oxidation state, written as Fe\u00b3\u207a. Sulfide comes from sulfur, which typically forms an ion with a -2 charge, written as S\u00b2\u207b.<\/p>\n\n\n\n<p>To write the formula for a compound, the total positive charge must balance the total negative charge, resulting in an electrically neutral compound. Iron(III) sulfide combines Fe\u00b3\u207a and S\u00b2\u207b ions in a ratio that balances these charges.<\/p>\n\n\n\n<p>Since iron has a charge of +3 and sulfur has a charge of -2, the goal is to find the smallest whole-number ratio of Fe\u00b3\u207a and S\u00b2\u207b ions that make the net charge zero. To balance +3 and -2 charges, find the least common multiple of 3 and 2, which is 6.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Iron(III) contributes +3 charge per ion. To reach +6 total positive charge, 2 Fe\u00b3\u207a ions are needed: 2 \u00d7 +3 = +6.<\/li>\n\n\n\n<li>Sulfur contributes -2 charge per ion. To reach -6 total negative charge, 3 S\u00b2\u207b ions are needed: 3 \u00d7 -2 = -6.<\/li>\n<\/ul>\n\n\n\n<p>Thus, combining 2 iron(III) ions with 3 sulfide ions balances the charges: (2 \u00d7 +3) + (3 \u00d7 -2) = 0.<\/p>\n\n\n\n<p>Therefore, the chemical formula is Fe\u2082S\u2083, showing 2 iron atoms and 3 sulfur atoms.<\/p>\n\n\n\n<p>This reflects the fundamental principle in ionic compounds where the total positive charge from cations equals the total negative charge from anions, making the compound electrically neutral.<\/p>\n\n\n\n<p>In summary, the formula Fe\u2082S\u2083 is derived by balancing the charges of Fe\u00b3\u207a and S\u00b2\u207b ions in the smallest whole number ratio, ensuring electrical neutrality in Iron(III) sulfide.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the formula for Iron(III) sulfide? And why? The correct answer and explanation is: The formula for Iron(III) sulfide is Fe\u2082S\u2083. Iron(III) indicates that iron is in the +3 oxidation state, written as Fe\u00b3\u207a. Sulfide comes from sulfur, which typically forms an ion with a -2 charge, written as S\u00b2\u207b. To write the formula [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39371","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/39371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=39371"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/39371\/revisions"}],"predecessor-version":[{"id":39372,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/39371\/revisions\/39372"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=39371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=39371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=39371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}