adding an excess amount of KBr or KI to an acidified solution of the sample according to the following reaction: BrO3- + 5 Br- + 6 H+ 3 Br2 + 3 H2O IO3- + 5 I- + 6 H+ 3 I2 + 3 H2O Sodium thiosulfate solutions can be standardized by direct titration of the I2 generated in in the KIO3 reaction using the starch-iodine complex as the indicator (remember that the iodine is actually in the form of the triiodide ions in the presence of excess KI due to the I2 + I- I3-‚ equilibrium
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18 mm X 150 mm test tube rack * Pipette Procedure: 1. Place the 4 solutions in separate test tubes with about 2.5 mL in each. (NaF‚ NaCl‚ KBr‚ KI) Use a dropper or you can use a pipette. Add 1 Ml ( 20 drops) of 0.5 M Ca ( NO3h) to each test tubes. Observe
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Bandler (Indigenous) (Australian) (political) Key Themes: * Justice * Equality Aung San Suu Ki (political) (international) (non-indigenous) Key Themes: * War and Peace * Deane (non political) (Australian) (non-indigenous) Key Themes: * The tragedy of loss of human life Reasons why a speech is great: * Resonates in new context * Continues to inspire or warn or influence * Speaks to you as a modern audience * The themes and emotional aspects * It
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shamil ho ragon mein khoon ki maanind!! Tu jo roothay kbhi to mana lunga tjhe‚ mgr dekh. . . .! Muhabbaton mein meri shaamil koi dusra na ho. . . .! Mera raakh hota hua baddan‚thak kr mjse sawaal krta ha! Kia ishq krna zruri tha? Meri bat maano mohsin! tm chor do shararat!!! Ye jo ishq kr rahe ho barbad ho rahe ho... Suna ha rat bhar barsa ha badal toot kr! Khushksali mgr dil ki najane q nhe jati..... December beet jane se fark prta ha ab kis ko??? Jo rishta dil ka rishta
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OF DISSOLVED OXYGEN CONTENT BY WINKLER REDOX TITRATION A. Standardization of Thiosulfate Solution Primary Standard used: KIO3 Formula Mass of Primary Standard: 214.0010 g/mol %Purity: 99.9% Formula Mass of KI: 166.00277 g/mol %Purity of KI: 99.9% Trial 1 2 3 KIO3 weight‚ g 0.1459 0.1458 0.1459 KI weight‚ g 1.0033 0.9857 1.0100 Volume of Na2S2O3‚ ml Final Volume‚ ml 22.6 25.5 22.9 Initial Volume‚ ml 0.0 0.0 0.0 Net volume‚ ml 22.6 25.5 22.9 B. Sample Analysis Volume of Sample: 400 ml Volume of sample
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department and different government and non-government organizations are the part of BDMS. The primary purpose of UNDMT is to ensure prompt effective and country level disaster preparedness by the UN system and the response when appropriate. The Nehru Yuva Kendras were launched in the year 1972 as part of the silver jubilee celebration of India Independence with the objective of providing the non-student rural youth avenues to take part in nation building activities. NYE functions under the ministry
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The Confused Youth: To Be Or Not To Be!? The dilemma of whether to be socially responsible or not. The first image which comes to anyone’s mind when someone says ‘Youth‚’ is the image of a group of friends sitting together laughing and teasing‚ probably planning to bunk a lecture so they can go watch a film. People say they are ignorant and indifferent to everything but the aspect which interests them. Youth has been stereotyped by society and unfortunately‚ by the youth themselves. The reality
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Igniting Young Minds: Swami Vivekananda’s success Mantras for youth! “My Faith is in the Younger Generation‚ the Modern Generation‚ out of them will come my workers. They will work out the whole problem‚ like Lions.” Swami Vivekananda expressed this confidence in the youth of this country exactly 50 years before the end of Colonial Rule while speaking to a mammoth gathering of youngsters in Madras. Swami ji himself was the embodiment of youth‚ dynamism and vibrancy. The life and ideals of Swami
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39. The Viscosity of Liquids After studying the present lecture‚ you will be able to Define viscosity and viscosity coefficient Outline the method to measure viscosity using Ostwald viscometer Determine the average molecular weight of a polymer Determine the surface concentration of 1-butanol in aqueous solution Measure the distribution coefficient of a solute betweenn two solvents 39.1 Introduction Viscosity‚ one of the transport properties‚ arises because of intermolecular attractive and
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thức ngôn ngữ và đặc biệt là các kĩ năng thực hành giao tiếp (nghe‚ nói‚ đọc‚ viết) để người học có thể sử dụng ngoại ngữ như một phương tiện giao tiếp nói hoặc viết theo nhu cầu cá nhân‚ xã hội-nghề nghiệp. Các kĩ năng thực hành có mối liên hệ khăng khít‚ hỗ trợ‚ bổ sung lẫn nhau. Để thực hành tốt một ngoại ngữ‚ không thể chỉ chú trọng kĩ năng này mà coi nhẹ kĩ năng kia. Tuy nhiên‚ mỗi kĩ năng đều có những đặc điểm riêng biệt đòi hỏi phải tính đến và nghiên cứu kĩ lưỡng để có thể nâng cao hiệu quả
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