{"id":148472,"date":"2022-03-21T09:17:43","date_gmt":"2022-03-21T03:47:43","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/titration-of-oxalic-acid-against-sodium-hydroxide-procedure-s-and-precautions\/"},"modified":"2023-12-13T16:39:27","modified_gmt":"2023-12-13T11:09:27","slug":"titration-of-oxalic-acid-against-sodium-hydroxide-procedure-s-and-precautions","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/","title":{"rendered":"Titration of Oxalic Acid against Sodium Hydroxide"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Aim\" title=\"Aim\">Aim<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Theory\" title=\"Theory\">Theory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Materials\" title=\"Materials\">Materials<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Procedure\" title=\"Procedure\">Procedure<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#a_Preparing_a_01M_Standard_Oxalic_Acid_Solution\" title=\"(a) Preparing a 0.1M Standard Oxalic Acid Solution:\">(a) Preparing a 0.1M Standard Oxalic Acid Solution:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#b_Titration_of_Sodium_Hydroxide_with_Oxalic_Acid\" title=\"(b) Titration of Sodium Hydroxide with Oxalic Acid:\">(b) Titration of Sodium Hydroxide with Oxalic Acid:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Observations\" title=\"Observations\">Observations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Calculations\" title=\"Calculations\">Calculations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Results\" title=\"Results\">Results<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/#Precautions\" title=\"Precautions\">Precautions<\/a><\/li><\/ul><\/nav><\/div>\n<p>The process of determining the strength of an acid solution by titration with a standard base solution is known as acidimetry. Conversely, when we determine the strength of an alkali solution by titrating it with a standard acid solution, it&#8217;s called alkalimetry.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Aim\"><\/span>Aim<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To find out how strong a sodium hydroxide solution is by titrating it with a standard solution of oxalic acid.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Theory\"><\/span>Theory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This experiment involves titrating a weak acid, oxalic acid, with a strong base, sodium hydroxide, using phenolphthalein as an indicator. The reaction between oxalic acid and sodium hydroxide is:<\/p>\n<p><strong>(COOH)<sub>2<\/sub> + 2NaOH \u2192 (COONa)<sub>2<\/sub> + 2H<sub>2<\/sub>O<\/strong><\/p>\n<p>Because sodium hydroxide isn&#8217;t a primary standard, we prepared a standard solution of oxalic acid for standardizing sodium hydroxide.<\/p>\n<p>In an acid-base titration, at the endpoint, the amount of acid becomes equal to the amount of base, resulting in a neutral solution.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Materials\"><\/span>Materials<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Burette<\/li>\n<li>Pipette<\/li>\n<li>Conical flask<\/li>\n<li>Burette stand<\/li>\n<li>Funnel<\/li>\n<li>Stirrer<\/li>\n<li>White glazed tile<\/li>\n<li>Measuring flask<\/li>\n<li>Oxalic acid (solid)<\/li>\n<li>Oxalic acid solution<\/li>\n<li>Sodium hydroxide solution<\/li>\n<li>Phenolphthalein indicator<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Procedure\"><\/span>Procedure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"a_Preparing_a_01M_Standard_Oxalic_Acid_Solution\"><\/span>(a) Preparing a 0.1M Standard Oxalic Acid Solution:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>To begin, take a watch glass and clean it with distilled water, ensuring it is completely dry. Then, weigh the watch glass accurately and record its weight in your notebook.<\/li>\n<li>Next, measure 3.15 grams of oxalic acid carefully and place it on the watch glass. Record this weight in your notebook as well.<\/li>\n<li>Using a funnel, gently transfer the oxalic acid from the watch glass into a clean and dry measuring flask. To remove any remaining particles on the watch glass, rinse it with distilled water, being cautious not to exceed 50 mL of water.<\/li>\n<li>Similarly, wash the funnel multiple times with distilled water, ensuring that you use small quantities of water each time, not exceeding 50 mL. This step is essential to move any remaining particles into the measuring flask.<\/li>\n<li>Now, rinse the funnel thoroughly with distilled water to ensure that all the solution adhering to it enters the measuring flask.<\/li>\n<li>Rotate the measuring flask gently until the oxalic acid fully dissolves.<\/li>\n<li>Using a wash bottle, carefully add enough distilled water to the measuring flask, stopping just below the etched mark on the flask.<\/li>\n<li>To reach the mark, add the last few mL of distilled water drop by drop into the measuring flask until the reduced meniscus level aligns with the mark.<\/li>\n<li>Seal the flask with its stopper and gently shake it to ensure the entire solution is well-mixed. This solution can be considered as a M\/10 oxalic acid solution.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"b_Titration_of_Sodium_Hydroxide_with_Oxalic_Acid\"><\/span>(b) Titration of Sodium Hydroxide with Oxalic Acid:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>Rinse the burette by flushing it with the standard oxalic acid solution.<\/li>\n<li>Take 10 milliliters of the oxalic acid solution and place it in a titration flask.<\/li>\n<li>Fill the burette with sodium hydroxide solution.<\/li>\n<li>Ensure there is no air gap in the burette by forcefully expelling any remaining air from the burette nozzle and make note of the starting measurement.<\/li>\n<li>Using a pipette, transfer 20 milliliters of the sodium hydroxide solution into a conical flask, and add 2-3 drops of phenolphthalein indicator.<\/li>\n<li>Begin titrating the sodium hydroxide solution with the oxalic acid solution until the pink color disappears.<\/li>\n<li>Repeat the titration process until you achieve three consistent readings.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"Observations\"><\/span>Observations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Molarity of Oxalic acid solution = M\/10<\/li>\n<li>Sodium hydroxide molarity (N1) = x<\/li>\n<li>Volume of oxalic acid solution = 10cm<sup>3<\/sup><\/li>\n<li>Indicator = Phenolphthalein<\/li>\n<li>End point = Light pink color<\/li>\n<\/ul>\n<div class=\"table-responsive\">\n<table class=\"table table-bordered table-striped\" style=\"width: 100%;\" cellspacing=\"0\" cellpadding=\"5\">\n<tbody>\n<tr style=\"background-color: #89cff0; color: black;\">\n<td><strong>S.No<\/strong><\/td>\n<td><strong>Initial Reading of the Burette<\/strong><\/td>\n<td><strong>Final Reading of the Burette<\/strong><\/td>\n<td><strong>Volume of NaOH solution used<\/strong><\/td>\n<td><strong>Concordant Reading<\/strong><\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>a cm<sup>3<\/sup><\/td>\n<td>b cm<sup>3<\/sup><\/td>\n<td>(b-a) cm<sup>3<\/sup><\/td>\n<td>V cm<sup>3<\/sup><\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>b cm<sup>3<\/sup><\/td>\n<td>c cm<sup>3<\/sup><\/td>\n<td>(c-b) cm<sup>3<\/sup><\/td>\n<td>V cm<sup>3<\/sup><\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>c cm<sup>3<\/sup><\/td>\n<td>d cm<sup>3<\/sup><\/td>\n<td>(d-c) cm<sup>3<\/sup><\/td>\n<td>V cm<sup>3<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Calculations\"><\/span>Calculations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Mass of Oxalic Acid dissolved in 100ml of standard solution = y g<\/p>\n<p>Strength of Oxalic acid = y x 10g\/L<\/p>\n<p>Normality(N) of standard oxalic acid = Strength \/ Eq. wt = y x 10\/63.04 = N<\/p>\n<p>Normality(N1) of Sodium hydorxide solution<\/p>\n<p>N<sub>1<\/sub> x V<sub>1<\/sub> = N x V<\/p>\n<p>Therefore, N<sub>1<\/sub> = N x V\/V<sub>1<\/sub><\/p>\n<p>N<sub>2<\/sub> = N<sub>1<\/sub> x V<sub>1<\/sub>\/V<sub>2<\/sub><\/p>\n<p>Strength of given oxalic acid = N2 x 63.04 g\/L<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Results\"><\/span>Results<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The strength of the sodium hydroxide solution is _______ g\/L.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Precautions\"><\/span>Precautions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To weigh the oxalic acid crystals correctly, you will need weights of 2 grams, 1 gram, 100 milligrams, and 50 milligrams.<\/p>\n<ol>\n<li>Be careful not to spill any of the substance on the balance pan while weighing.<\/li>\n<li>Turn the knob of the balance gently to get an accurate measurement.<\/li>\n<li>After weighing, make sure to put the weights back in their proper places in the weights box.<\/li>\n<li>When you&#8217;re transferring the weighed substance, wash the watch glass thoroughly to ensure no crystals are left behind.<\/li>\n<li>Bring the watch glass close to the funnel while transferring the substance and do it gently. Rinse it multiple times with distilled water.<\/li>\n<li>After you&#8217;ve finished the titration, clean the burette with water.<\/li>\n<li>To prevent adding too much distilled water above the mark on the measuring cylinder&#8217;s neck, use a pipette for the last few drops.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>The process of determining the strength of an acid solution by titration with a standard base solution is known as [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Titration of Oxalic Acid against Sodium Hydroxide","_yoast_wpseo_title":"Titration of Oxalic Acid vs. Sodium Hydroxide: Procedure & Calculations","_yoast_wpseo_metadesc":"Learn the step-by-step procedure and calculations involved in titrating Oxalic Acid against Sodium Hydroxide. Get accurate results with our comprehensive guide.","custom_permalink":"chemistry\/titration-of-oxalic-acid-against-sodium-hydroxide\/"},"categories":[12],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Titration of Oxalic Acid vs. Sodium Hydroxide: Procedure &amp; Calculations<\/title>\n<meta name=\"description\" content=\"Learn the step-by-step procedure and calculations involved in titrating Oxalic Acid against Sodium Hydroxide. 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