{"id":187513,"date":"2025-02-05T04:23:06","date_gmt":"2025-02-05T04:23:06","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=187513"},"modified":"2025-02-05T04:23:09","modified_gmt":"2025-02-05T04:23:09","slug":"complete-the-following-solubility-constant-expression-for-mgoh2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/05\/complete-the-following-solubility-constant-expression-for-mgoh2\/","title":{"rendered":"Complete The Following Solubility Constant Expression For Mg(OH)2"},"content":{"rendered":"\n

Complete The Following Solubility Constant Expression For Mg(OH)2.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

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

The solubility product constant (( K_{sp} )) expression for magnesium hydroxide (( Mg(OH)_2 )) is derived from its dissociation equation in aqueous solution:<\/p>\n\n\n\n

[
Mg(OH)_2 (s) \\rightleftharpoons Mg^{2+} (aq) + 2OH^- (aq)
]<\/p>\n\n\n\n

The solubility product constant expression is given by:<\/p>\n\n\n\n

[
K_{sp} = [Mg^{2+}][OH^-]^2
]<\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n
    \n
  1. Dissociation of ( Mg(OH)_2 )<\/strong>
    Magnesium hydroxide is a slightly soluble salt in water. When it dissolves, it dissociates into magnesium ions (( Mg^{2+} )) and hydroxide ions (( OH^- )) in a 1:2 molar ratio.<\/li>\n\n\n\n
  2. Solubility Product Constant (( K_{sp} ))<\/strong>
    The solubility product constant is a measure of the extent to which a compound dissolves in water. It is defined as the product of the equilibrium concentrations of the ions, each raised to the power of its stoichiometric coefficient in the balanced equation.<\/li>\n\n\n\n
  3. Why Solid ( Mg(OH)2 ) is Not Included in ( K<\/em>{sp} )<\/strong>
    Solubility equilibrium expressions do not include solids or pure liquids because their concentrations remain constant. The equilibrium expression only involves the concentrations of the dissolved ionic species.<\/li>\n\n\n\n
  4. Importance of ( K_{sp} )<\/strong><\/li>\n<\/ol>\n\n\n\n
      \n
    • The ( K_{sp} ) value helps predict whether a precipitate will form when solutions containing ( Mg^{2+} ) and ( OH^- ) are mixed.<\/li>\n\n\n\n
    • A high ( K_{sp} ) value indicates greater solubility, while a low ( K_{sp} ) value means the compound is less soluble.<\/li>\n\n\n\n
    • Knowing ( K_{sp} ) allows chemists to calculate the solubility of ( Mg(OH)_2 ) in water.<\/li>\n<\/ul>\n\n\n\n
        \n
      1. Application in Real Life<\/strong><\/li>\n<\/ol>\n\n\n\n
          \n
        • Medicine<\/strong>: Magnesium hydroxide is used as an antacid and laxative (milk of magnesia).<\/li>\n\n\n\n
        • Water Treatment<\/strong>: It helps neutralize acidic water.<\/li>\n\n\n\n
        • Industrial Uses<\/strong>: Used in wastewater treatment to remove heavy metals.<\/li>\n<\/ul>\n\n\n\n

          Thus, the correct solubility constant expression for ( Mg(OH)_2 ) is:<\/p>\n\n\n\n

          [
          K_{sp} = [Mg^{2+}][OH^-]^2
          ]<\/p>\n","protected":false},"excerpt":{"rendered":"

          Complete The Following Solubility Constant Expression For Mg(OH)2. The Correct Answer and Explanation is : The solubility product constant (( K_{sp} )) expression for magnesium hydroxide (( Mg(OH)_2 )) is derived from its dissociation equation in aqueous solution: [Mg(OH)_2 (s) \\rightleftharpoons Mg^{2+} (aq) + 2OH^- (aq)] The solubility product constant expression is given by: [K_{sp} […]<\/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-187513","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/187513","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=187513"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/187513\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=187513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=187513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=187513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}