{"id":196491,"date":"2025-03-05T04:58:01","date_gmt":"2025-03-05T04:58:01","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=196491"},"modified":"2025-03-05T04:58:04","modified_gmt":"2025-03-05T04:58:04","slug":"write-165-ppm-as-ppb-o-and-90","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/05\/write-165-ppm-as-ppb-o-and-90\/","title":{"rendered":"Write 165 ppm as ppb, %o and 90"},"content":{"rendered":"\n<p>Write 165 ppm as ppb, %o and 90. Write 5.25% as g\/kg and mg\/kg. Indicate which ofthe following ratios are %, %0, ppm, or ppb(t=metric tonne): \u00b5g\/g g\/100g Convert the following to ppm (by mass) assuming water has pwater 1.0 kg\/L and air pair 1.2 g\/L g\/t kg\/t ug\/kg mg\/kg 4. 1.5 g\/liter water 0.120 g\/liter air<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>Let&#8217;s go step by step through each part of the question and explain how to convert between the different units and ratios.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Conversion of 165 ppm:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>From ppm to ppb<\/strong>:<br>1 ppm is equal to 1000 ppb. So to convert 165 ppm to ppb:<br>[<br>165 \\, \\text{ppm} = 165 \\times 1000 = 165,000 \\, \\text{ppb}<br>]<\/li>\n\n\n\n<li><strong>From ppm to %o<\/strong> (per thousand):<br>1 ppm is equivalent to 0.1%o (per thousand). So to convert 165 ppm to %o:<br>[<br>165 \\, \\text{ppm} = 165 \\times 0.1 = 16.5 \\, \\text{%o}<br>]<\/li>\n\n\n\n<li><strong>From ppm to %<\/strong> (percentage):<br>1 ppm is equal to 0.0001%. So to convert 165 ppm to %:<br>[<br>165 \\, \\text{ppm} = 165 \\times 0.0001 = 0.0165 \\, \\%<br>]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Conversion of 5.25%:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>From % to g\/kg<\/strong> (grams per kilogram):<br>1% is equal to 10 g\/100g or 10 g per 100 grams, which is the same as 10 g per 100 grams. Since 1 kilogram is 1000 grams, we multiply 5.25% by 10:<br>[<br>5.25\\% = 5.25 \\times 10 = 52.5 \\, \\text{g\/kg}<br>]<\/li>\n\n\n\n<li><strong>From % to mg\/kg<\/strong> (milligrams per kilogram):<br>1% is equal to 10,000 mg\/100g or 10,000 mg per 100 grams. In terms of kilograms:<br>[<br>5.25\\% = 5.25 \\times 10,000 = 52,500 \\, \\text{mg\/kg}<br>]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Analyzing the ratios:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u00b5g\/g<\/strong>: This is a ratio of micrograms per gram, which is typically equivalent to ppm.<\/li>\n\n\n\n<li><strong>g\/100g<\/strong>: This is a ratio of grams per 100 grams, which can be expressed as a percentage (%).<\/li>\n\n\n\n<li><strong>g\/t<\/strong>: This represents grams per metric tonne, which is also a form of ppm since 1 metric tonne equals 1 million grams.<\/li>\n\n\n\n<li><strong>kg\/t<\/strong>: This represents kilograms per metric tonne, which is also a form of ppm.<\/li>\n\n\n\n<li><strong>ug\/kg<\/strong>: This represents micrograms per kilogram, which is similar to ppm but on a smaller scale.<\/li>\n\n\n\n<li><strong>mg\/kg<\/strong>: This represents milligrams per kilogram, which is often used in ppm terms.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Converting the given concentrations:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1.5 g\/liter of water<\/strong>:<br>Since the density of water is 1 kg\/L, 1.5 g\/L can be considered as 1.5 ppm.<\/li>\n\n\n\n<li><strong>0.120 g\/liter of air<\/strong>:<br>The density of air is 1.2 g\/L, so we need to convert this value based on air density. To convert grams per liter into ppm:<br>[<br>\\text{ppm} = \\frac{0.120 \\, \\text{g\/L}}{1.2 \\, \\text{g\/L}} \\times 1,000,000 = 100,000 \\, \\text{ppm}<br>]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Final Results:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>165 ppm = 165,000 ppb, 16.5 %o, 0.0165 %<\/li>\n\n\n\n<li>5.25% = 52.5 g\/kg, 52,500 mg\/kg<\/li>\n\n\n\n<li>\u00b5g\/g = ppm, g\/100g = %, g\/t = ppm, kg\/t = ppm, ug\/kg = ppm, mg\/kg = ppm<\/li>\n\n\n\n<li>1.5 g\/liter water = 1.5 ppm, 0.120 g\/liter air = 100,000 ppm<\/li>\n<\/ul>\n\n\n\n<p>Let me now generate an image to visually represent these conversions for you.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/03\/image-207.png\" alt=\"\" class=\"wp-image-196492\"\/><\/figure>\n\n\n\n<p>Here is the infographic that visually represents the conversions between the different concentration units. You can see how 165 ppm is converted to ppb, %o, and % and how 5.25% is converted to g\/kg and mg\/kg. It also shows the relationship between different ratios and how to convert them.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Write 165 ppm as ppb, %o and 90. Write 5.25% as g\/kg and mg\/kg. Indicate which ofthe following ratios are %, %0, ppm, or ppb(t=metric tonne): \u00b5g\/g g\/100g Convert the following to ppm (by mass) assuming water has pwater 1.0 kg\/L and air pair 1.2 g\/L g\/t kg\/t ug\/kg mg\/kg 4. 1.5 g\/liter water 0.120 [&hellip;]<\/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-196491","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/196491","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=196491"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/196491\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=196491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=196491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=196491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}