{"id":13429,"date":"2023-11-30T10:00:31","date_gmt":"2023-11-30T04:30:31","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=13429"},"modified":"2023-12-01T16:40:17","modified_gmt":"2023-12-01T11:10:17","slug":"prepare-standard-solution","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/prepare-standard-solution\/","title":{"rendered":"How do you prepare a standard solution?"},"content":{"rendered":"
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People also ask<\/strong><\/p>\n Figure shows how Example is carried out in the laboratory. 1.<\/strong> Calculate the volume of concentrated nitric acid, 18 mol dm-3<\/sup> which is required to prepare 5.0 dm3<\/sup> of 2.0 mol dm-3<\/sup> nitric acid. 2.<\/strong> What volume of 2.0 mol dm-3<\/sup> sulphuric acid is needed to prepare 100 cm3<\/sup> of 0.5 mol dm-3<\/sup> sulphuric acid? How do you prepare a standard solution? Preparation of a standard solution by weighing method A solution whose concentration is accurately known is called a standard solution. A standard solution can be prepared by weighing method in the following way. (a) The mass of solute needed is calculated and weighed. (b) The solute is dissolved […]<\/p>\n","protected":false},"author":3,"featured_media":162751,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[84],"tags":[4902,4904,4903,4905],"yoast_head":"\n\n
Preparation of a standard solution by dilution method<\/strong><\/h3>\n
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\n(a) changes the concentration of the solution<\/strong>
\n(b) does not change the number of moles of solute present<\/strong><\/li>\n
\nMoles of solute before dilution = moles of solute after dilution<\/strong><\/li>\n
\nSince adding water does not change the number of moles of solute particles,
\nM1<\/sub>V1<\/sub> = M2<\/sub>V2<\/sub> <\/strong><\/p>\n
\n<\/p>\n\n
\n(a) Calculate the volume of stock solution required.
\n
\n(b) Fill a burette with the stock solution.
\nRun out 37.5 cm3<\/sup> of stock solution into a 500 cm3<\/sup> volumetric flask containing some distilled water.
\n
\n(c) Add more distilled water into the flask, with constant swirling. Then, use a dropper to add distilled water to bring the meniscus to the calibration mark. Stopper the flask and shake well to ensure thorough mixing.
\n<\/li>\n<\/ul>\n
\nSolution:
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\n<\/strong><\/p>\n
\nSolution:
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\n<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"