To calculate how many cups of tea a 700 g rat would need to drink to consume an average lethal dose of caffeine, we need to break down the problem step by step.<\/p>\n\n\n\n
Step 1: Determine the lethal dose of caffeine for a rat<\/h3>\n\n\n\n
The LD50<\/strong> (lethal dose for 50% of subjects) is given as 192 mg\/kg<\/strong> for rats. This means that for each kilogram of body weight, the lethal dose is 192 mg of caffeine.<\/p>\n\n\n\n For a rat weighing 700 g<\/strong>, we first convert the weight to kilograms: 700\u2009g=0.7\u2009kg700 \\, \\text{g} = 0.7 \\, \\text{kg}700g=0.7kg<\/p>\n\n\n\n Next, multiply the rat’s weight in kilograms by the lethal dose per kilogram: Lethal dose=192\u2009mg\/kg\u00d70.7\u2009kg=134.4\u2009mg\\text{Lethal dose} = 192 \\, \\text{mg\/kg} \\times 0.7 \\, \\text{kg} = 134.4 \\, \\text{mg}Lethal dose=192mg\/kg\u00d70.7kg=134.4mg<\/p>\n\n\n\n So, the lethal dose of caffeine for a 700 g rat is 134.4 mg<\/strong>.<\/p>\n\n\n\n Each tea bag contains 25 mg<\/strong> of caffeine. To find out how many cups of tea are needed to reach the lethal dose, divide the lethal dose by the amount of caffeine per tea bag: Number of cups=134.4\u2009mg25\u2009mg\/cup=5.376\\text{Number of cups} = \\frac{134.4 \\, \\text{mg}}{25 \\, \\text{mg\/cup}} = 5.376Number of cups=25mg\/cup134.4mg\u200b=5.376<\/p>\n\n\n\n Since the rat cannot drink a fraction of a cup in this context, we round this to the nearest whole number. Therefore, the rat would need to drink 5 cups of tea<\/strong> to consume a lethal dose of caffeine.<\/p>\n\n\n\n A 700 g rat would need to drink 5 cups of tea<\/strong> (each containing 25 mg of caffeine) to consume an average lethal dose of caffeine.<\/p>\n\n\n\n 50% kill (LD50) for rats is 192 mg\/kg. MSDS sheets state that the lethal dose of caffeine is 25 mg. How many cups of tea (assuming each tea bag contains 25 mg of caffeine) would a 700 g rat need to drink to consume an average lethal dose? [2] The Correct Answer and Explanation is: […]<\/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-265622","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/265622","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=265622"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/265622\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=265622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=265622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=265622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Step 2: Calculate how many cups of tea this corresponds to<\/h3>\n\n\n\n
Conclusion:<\/h3>\n\n\n\n
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<\/figure>\n","protected":false},"excerpt":{"rendered":"