{"id":27811,"date":"2025-06-20T07:26:33","date_gmt":"2025-06-20T07:26:33","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=27811"},"modified":"2025-06-20T07:26:34","modified_gmt":"2025-06-20T07:26:34","slug":"determine-the-number-of-grams-needed-for-12-5-solution-of-150-ml","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/determine-the-number-of-grams-needed-for-12-5-solution-of-150-ml\/","title":{"rendered":"Determine the number of grams needed for 12.5% solution of 150 mL"},"content":{"rendered":"\n<p>Determine the number of grams needed for 12.5% solution of 150 mL<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n<p>To determine the number of <strong>grams<\/strong> of solute needed for a <strong>12.5% solution<\/strong> in <strong>150 mL<\/strong> of solution, follow this process:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 <strong>Correct Answer:<\/strong><\/h3>\n\n\n\n<p><strong>18.75 grams<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd0d <strong>Explanation (300 words):<\/strong><\/h3>\n\n\n\n<p>A <strong>12.5% solution<\/strong> typically refers to a <strong>weight\/volume percent (w\/v%)<\/strong>, which is a common way to express the concentration of a solution in biology and chemistry. A 12.5% w\/v solution means:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>12.5 grams of solute per 100 mL of solution<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p>We are given:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Concentration = <strong>12.5% w\/v<\/strong><\/li>\n\n\n\n<li>Volume of solution = <strong>150 mL<\/strong><\/li>\n<\/ul>\n\n\n\n<p>We use the formula: \\text{grams of solute} = \\left( \\frac{\\text{% concentration}}{100} \\right) \\times \\text{volume (mL)}<\/p>\n\n\n\n<p>Substitute the values: grams&nbsp;of&nbsp;solute=(12.5100)\u00d7150=0.125\u00d7150=18.75&nbsp;grams\\text{grams of solute} = \\left( \\frac{12.5}{100} \\right) \\times 150 = 0.125 \\times 150 = 18.75 \\text{ grams}<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\uddea Why This Matters:<\/h3>\n\n\n\n<p>In practice, preparing solutions of a specific concentration is fundamental in laboratories, pharmacies, and healthcare. For instance, if a nurse needs to administer a 12.5% glucose solution or a lab technician needs to prepare a 12.5% salt solution, they must calculate the exact amount of solute (in grams) to dissolve in a given volume (in mL) of solvent\u2014usually water.<\/p>\n\n\n\n<p>Using this formula ensures <strong>accurate dosing<\/strong>, <strong>consistent results<\/strong>, and <strong>safe application<\/strong>, whether in medicine, science, or food production. Miscalculating could result in a solution that is either too dilute (ineffective) or too concentrated (potentially harmful).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Summary:<\/h3>\n\n\n\n<p>To make <strong>150 mL<\/strong> of a <strong>12.5% solution<\/strong>, you need to weigh out and dissolve <strong>18.75 grams<\/strong> of the solute in enough solvent to make the total volume <strong>150 mL<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Determine the number of grams needed for 12.5% solution of 150 mL The correct answer and explanation is: To determine the number of grams of solute needed for a 12.5% solution in 150 mL of solution, follow this process: \u2705 Correct Answer: 18.75 grams \ud83d\udd0d Explanation (300 words): A 12.5% solution typically refers to a [&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-27811","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27811","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=27811"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27811\/revisions"}],"predecessor-version":[{"id":27816,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27811\/revisions\/27816"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=27811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=27811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=27811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}