WebMolecular mass of Oxalic Acid = 126. 12.6 g of oxalic acid per litre of the solution should be dissolved to prepare M/10 oxalic acid solution. On the … WebFeb 1, 2024 · Chemistry Practical Class 12 Viva Questions. Chemistry Practical Class 12 viva questions are as follows. Ques: Why is heating done for Oxalic Acid ,KMnO4 titration? Ques: Why is H2SO4 used instead of HCl?. Ques: Explain the principle of Salt analysis. Ques: What examples of salt with Colours?. Ques: Why are salts classified into groups?. Ques: …
Chemistry Practical For Class 12 Lab Manual - Exam Feed
Web193 In this experiment you will test both your accuracy and precision. Students with the same unknown sample will compile their data, and you will submit a mean molar mass of the solid monoprotic acid. Before calculating the mean molar mass, a Q-test will be applied to the data to insure that all of the calculated molar masses should be included in the … WebSep 7, 2024 · Chemistry Practical Class 12. (i) Preparation of M/50 oxalic acid solution: The molar mass of oxalic acid (COOH)2. 2H2O) is 126 g/mol. For the preparation of. 250 mL … after samonella carrier
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WebOxalic acid is used as a reducing agent in the experiment, and KMnO4 is placed in an acidic medium of H2SO4. As a result, no indication is required because potassium permanganate is a self-indicator. The following reactions can be used to titrate oxalic acid against potassium permanganate: WebOct 11, 2024 · Oxalic acid is heated to speed up the liberation of Mn 2+ ions which then autocatalyses the reaction and thus the reaction proceeds rapidly. This also serves the purpose of expelling the carbondioxide evolved during the reaction which otherwise does not allow the reaction to go to completion. http://notesforfree.com/2024/09/15/practical_xii_titration-oxalic-acid/ afterscroll delphi