{"id":5434,"date":"2022-07-02T08:16:43","date_gmt":"2022-07-02T08:16:43","guid":{"rendered":"https:\/\/mdr.foobrdigital.com\/?p=5434"},"modified":"2022-07-02T08:16:43","modified_gmt":"2022-07-02T08:16:43","slug":"universal-indicator","status":"publish","type":"post","link":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/2022\/07\/02\/universal-indicator\/","title":{"rendered":"Universal indicator"},"content":{"rendered":"\n<p>A&nbsp;universal indicator has a pH range from&nbsp;0 to 14 that indicates the acidity or alkalinity of a solution.<br>A neutral solution has pH=7<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">pH<\/h3>\n\n\n\n<p><em>pH=\u2212log<sub>10<\/sub>[H<sup>+<\/sup>]<\/em><br>In pure water, [H<sup>+<\/sup>]=[OH<sup>\u2212<\/sup>]=10<sup>\u22127<\/sup>&nbsp;mol\/L. Hence, the pH of pure water is 7.<br>The pH scale ranges from 0 to 14.<br>If pH &lt; 7&nbsp;\u2192 acidic solution<br>If pH &gt; 7\u2192 basic solution<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/cdn1.byjus.com\/wp-content\/uploads\/2022\/06\/pH-chart1.png\" alt=\"pH chart1\" class=\"wp-image-1804859\" title=\"pH chart1\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/mdr.foobrdigital.com\/wp-content\/uploads\/2022\/07\/Acids-Bases-and-Salts-4.png\" alt=\"\" class=\"wp-image-5435\" title=\"CBSE Class 10 Science Notes Chapter 2 - 4\"\/><\/figure>\n\n\n\n<p>pH scale<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Importance of pH in everyday life<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">1. pH sensitivity of plants and animals<\/h3>\n\n\n\n<p>Plants and animals are sensitive to pH. Crucial life processes such as digestion of food, functions of enzymes and hormones happen at a certain pH value.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. pH of a soil<\/h3>\n\n\n\n<p>The pH of a soil optimal for the growth of plants or crops is 6.5 to 7.0.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. pH in the digestive system<\/h3>\n\n\n\n<p>The process of digestion happens at a specific pH in our stomach which is 1.5 to 4.<br>The pH of the interaction of enzymes, while food is being digested, is influenced by HCl in our stomach.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. pH in tooth&nbsp;decay<\/h3>\n\n\n\n<p>Tooth decay happens when the teeth are&nbsp;exposed to an acidic environment of&nbsp;pH 5.5&nbsp;and&nbsp;below.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. pH of self-defence by animals and plants<\/h3>\n\n\n\n<p>Acidic substances are used by animals and plants as a self-defence mechanism. For example, bee and plants like nettle secrete a highly acidic substance for self-defence. These secreted acidic substances have a specific pH.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A&nbsp;universal indicator has a pH range from&nbsp;0 to 14 that indicates the acidity or alkalinity of a solution.A neutral solution has pH=7 pH pH=\u2212log10[H+]In pure water, [H+]=[OH\u2212]=10\u22127&nbsp;mol\/L. Hence, the pH of pure water is 7.The pH scale ranges from 0 to 14.If pH &lt; 7&nbsp;\u2192 acidic solutionIf pH &gt; 7\u2192 basic solution pH scale Importance [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[632],"tags":[],"_links":{"self":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/5434"}],"collection":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/comments?post=5434"}],"version-history":[{"count":0,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/5434\/revisions"}],"wp:attachment":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/media?parent=5434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/categories?post=5434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/tags?post=5434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}