{"id":600,"date":"2015-03-08T11:49:26","date_gmt":"2015-03-08T11:49:26","guid":{"rendered":"http:\/\/paksc.org\/pk\/?p=600"},"modified":"2015-03-08T11:49:26","modified_gmt":"2015-03-08T11:49:26","slug":"how-to-find-out-oxygen-ratio-in-air","status":"publish","type":"post","link":"https:\/\/paksc.org\/pk\/science-experiments\/chemistry-experiments\/how-to-find-out-oxygen-ratio-in-air\/","title":{"rendered":"How to find out Oxygen ratio in air"},"content":{"rendered":"<h3 class=\"post-title entry-title\">How to find out Oxygen ratio in air by Candle combustion<\/h3>\n<div class=\"post-header\"><\/div>\n<div id=\"post-body-6803164485657028294\" class=\"post-body entry-content\">\n<div dir=\"ltr\">\n<table class=\"tr-caption-container\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\">\n<tbody>\n<tr>\n<td><a href=\"http:\/\/2.bp.blogspot.com\/-fUh0qBbKL_4\/TxbRa4_3xKI\/AAAAAAAAAC4\/L6uFBQXpBbs\/s1600\/Oxygen+ratio+in+air+1.JPG\" data-wpel-link=\"external\" target=\"_blank\" rel=\"nofollow external noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/2.bp.blogspot.com\/-fUh0qBbKL_4\/TxbRa4_3xKI\/AAAAAAAAAC4\/L6uFBQXpBbs\/s400\/Oxygen+ratio+in+air+1.JPG\" alt=\"\" width=\"400\" height=\"258\" border=\"0\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td class=\"tr-caption\">Water goes up the level 1\/5.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b>How to find out Oxygen ratio in air by Candle combustion <\/b><br \/>\n<b><br \/>\nMaterials\u00a0<\/b><br \/>\ncandle, glass vessel or <a title=\"PET Water Bottle Rocket\" href=\"http:\/\/paksc.org\/pk\/science-experiments\/physics-experiments\/209-pet-water-bottle-rocket\/\" data-wpel-link=\"internal\">PET bottle<\/a>, match, plate, sodium hydroxide, and water<br \/>\n<b><br \/>\nProcedure\u00a0<\/b><\/p>\n<ol>\n<li>The sodium hydroxide is dissolved in water and the solution of 3% is made.<\/li>\n<li>The candle is fixed in the plate.<\/li>\n<li>Light the candle.<\/li>\n<li>Cover it with the glass vessel or the PET bottle.<\/li>\n<li>Confirm the water level and the ratio of the volume.<\/li>\n<\/ol>\n<p><b>Science\u00a0<\/b><br \/>\nWhen burning, the candle uses the oxygen in the air. The water made by burning reduce the volume about 1\/1700 after cooling and becoming the liquid. As for remaining <a title=\"Chemistry Experiment: Production of Carbon Dioxide\" href=\"http:\/\/paksc.org\/pk\/science-experiments\/chemistry-experiments\/1186-chemistry-experiment-production-of-carbon-dioxide\/\" data-wpel-link=\"internal\">carbon dioxide<\/a>, it reacts with the sodium hydroxide and the sodium carbonate is made. It is absorbed to the solution. Therefore, water which is almost same volume of the oxygen rises in the container.<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>How to find out Oxygen ratio in air by Candle combustion Water goes up the level 1\/5. How to find out Oxygen ratio in air by Candle combustion Materials\u00a0 candle, glass vessel or PET bottle, match, plate, sodium hydroxide, and water Procedure\u00a0 The sodium hydroxide is dissolved in water and the solution of 3% is [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":601,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[6,17],"class_list":["post-600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chemistry-experiments","tag-class-7th-to-8th","tag-science-club-activities"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to find out Oxygen ratio in air -<\/title>\n<meta name=\"description\" content=\"How to find out Oxygen ratio in air How to find out Oxygen ratio in air\" \/>\n<meta name=\"robots\" content=\"index, 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