{"id":265489,"date":"2025-07-22T06:59:00","date_gmt":"2025-07-22T06:59:00","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=265489"},"modified":"2025-07-22T06:59:03","modified_gmt":"2025-07-22T06:59:03","slug":"what-is-the-concentration-in-mmol-l-of-a-ca2-solution-that-is-2-50-meq-l","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/22\/what-is-the-concentration-in-mmol-l-of-a-ca2-solution-that-is-2-50-meq-l\/","title":{"rendered":"What is the concentration in mmol\/L of a Ca2+ solution that is 2.50 meq\/L"},"content":{"rendered":"\n

What is the concentration in mmol\/L of a Ca2+ solution that is 2.50 meq\/L?<\/p>\n\n\n\n

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

To convert the concentration of Ca\u00b2\u207a from milliequivalents per liter (meq\/L) to millimoles per liter (mmol\/L), we need to account for the valence of calcium ions (Ca\u00b2\u207a).<\/p>\n\n\n\n

Step-by-step Conversion Process:<\/h3>\n\n\n\n
    \n
  1. Understanding Milliequivalents (meq)<\/strong>:
    A milliequivalent (meq) is a measure of the chemical reactivity of an ion. For an ion like Ca\u00b2\u207a, the milliequivalent value depends on its charge. For calcium, which has a charge of +2, the relation between moles, equivalents, and charge is: 1\u2009eq=1\u2009mol\u00a0of\u00a0charge=2\u2009mol\u00a0of\u00a0Ca\u00b2\u207a(since\u00a0Ca\u00b2\u207a\u00a0has\u00a0a\u00a0charge\u00a0of\u00a0+2)1 \\, \\text{eq} = 1 \\, \\text{mol of charge} = 2 \\, \\text{mol of Ca\u00b2\u207a} \\quad (\\text{since Ca\u00b2\u207a has a charge of +2})1eq=1mol\u00a0of\u00a0charge=2mol\u00a0of\u00a0Ca\u00b2\u207a(since\u00a0Ca\u00b2\u207a\u00a0has\u00a0a\u00a0charge\u00a0of\u00a0+2) Therefore, 1 mole of Ca\u00b2\u207a corresponds to 2 equivalents.<\/li>\n\n\n\n
  2. Conversion between meq and mmol<\/strong>:
    We know that 1 milliequivalent (meq) equals 1\/1000 of an equivalent, and 1 millimole (mmol) equals 1\/1000 of a mole. Since 1 equivalent of Ca\u00b2\u207a corresponds to 1\/2 mole (because of the +2 charge), the conversion from meq to mmol for Ca\u00b2\u207a involves dividing the meq value by the valence (which is 2 for Ca\u00b2\u207a).<\/li>\n\n\n\n
  3. Calculation<\/strong>:
    Given that the concentration of the Ca\u00b2\u207a solution is 2.50 meq\/L, to convert this to mmol\/L, we use the formula: mmol\/L=meq\/Lvalence\u00a0of\u00a0Ca\u00b2\u207a\\text{mmol\/L} = \\frac{\\text{meq\/L}}{\\text{valence of Ca\u00b2\u207a}}mmol\/L=valence\u00a0of\u00a0Ca\u00b2\u207ameq\/L\u200b So, we have: mmol\/L=2.50\u2009meq\/L2=1.25\u2009mmol\/L\\text{mmol\/L} = \\frac{2.50 \\, \\text{meq\/L}}{2} = 1.25 \\, \\text{mmol\/L}mmol\/L=22.50meq\/L\u200b=1.25mmol\/L<\/li>\n<\/ol>\n\n\n\n

    Final Answer:<\/h3>\n\n\n\n

    The concentration of the Ca\u00b2\u207a solution is 1.25 mmol\/L<\/strong>.<\/p>\n\n\n\n

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

    The conversion hinges on understanding the valence of the ion in question. Since calcium (Ca\u00b2\u207a) has a charge of +2, we divide the milliequivalent value by 2 to find the millimole concentration. The value of 1.25 mmol\/L is the equivalent concentration of Ca\u00b2\u207a ions in the solution, meaning for every liter of solution, there are 1.25 millimoles of Ca\u00b2\u207a ions present.<\/p>\n\n\n\n

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

    What is the concentration in mmol\/L of a Ca2+ solution that is 2.50 meq\/L? The Correct Answer and Explanation is: To convert the concentration of Ca\u00b2\u207a from milliequivalents per liter (meq\/L) to millimoles per liter (mmol\/L), we need to account for the valence of calcium ions (Ca\u00b2\u207a). Step-by-step Conversion Process: Final Answer: The concentration of […]<\/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-265489","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/265489","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=265489"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/265489\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=265489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=265489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=265489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}