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Potassium Iodide is one of the most common compounds used in Chemistry. This inorganic compound is white crystalline salt which is used in many fields like medicine, commercial and industrial applications. It is an ionic compound that is produced by treating potassium hydroxide (KOH) with iodine. It is soluble in water. It is used as a nutritional supplement in animal feeds and in the human diet. The chemical formula of potassium iodide is KI and it participates in several important chemical reactions.
Potassium Iodide- Chemical Formula
Potassium Iodide is a metal halide composed of potassium and iodine. (potassium and iodine formulae are K+ and I- respectively. The bond between them is ionic. Potassium has an oxidation number of +1 and iodide has an oxidation number of -1, So, the formula for potassium iodide is KI.
Calculation of Molar Mass: The molecular formula of potassium iodide is KI, Potassium has an atomic weight 39.0983 and Iodine has an atomic weight 126.90447, adding both of them we get: ( potassium iodine formula are K and I respectively)
126.90447 + 39.0983 = 166.0028.
Potassium Iodide can be produced in industries by treating KOH with iodine.
Structure of Potassium Iodide
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Uses of Potassium Iodide
It is a natural supplement for the human and animal diet.
It is added to certain salts so that iodine content is not lost during the oxidation process.
It is also helpful in protecting the body’s thyroid gland in the neck.
It is also used in photography, in the preparation of Silver Iodide.
Reactions Involving Potassium Iodide
2CuSO4 + 4KI → 2Cul + I2 + 2K2SO4
2KI + Cl2 → 2KCL + I2
2KI + Br2 → 2KBr + I2
The Vedantu Edge
Potassium Iodide Formula article prepared by Vedantu would benefit students immensely. Most of the time it is seen that the students find trouble understanding the concepts due to the difficult language of the content. Despite putting in their handwork, they fall short of the desired score, and are left feeling disappointed.
Scoring good grades in the exams is easier than you think. All the toppers in the class don’t do anything special but just know which resource to pick. You can also be one of the toppers in the class and totally impress your parents and teachers just by reading the Potassium Iodide Formula article for the examination. This is because the expert teachers at Vedantu have taken care that the content of the article is very easy to understand and students do not have to end up mugging up the whole concept. The students would be enabled to practically grasp the concepts and understand what the examiner is asking for in the exams.
Know Your Challenge
It is always better to test the depth of the water before you get into them. The same is with the exams. The students must always begin their preparation with knowledge of their subject as well as the exam they would attempt. To do this one should read the syllabus and the previous year question paper, with the intent to have a better understanding of the exam.
Read the Syllabus
Studying the syllabus well acquaints one with the challenges one has to face. It talks about the exact number of chapters and topics one needs to cover for the exam. Students shall make sure that they go through the syllabus twice or thrice. They should underline the important points and discuss them with their mentors to make more sense out of them. The syllabus shall be given more than one reading since one cannot take it lightly.
Reading Previous Year Question Papers
The teachers at Vedantu highly recommend the students go through the previous questions papers if they want to score impeccable grades in the exams. Therefore, the expert teachers highlight major benefits one can get from reading the previous year question paper, they are:
Precise studying approach
Weed out unnecessary information
Identifying and choosing to study from relevant resources.
Organizing and developing a systematic strategy for success
Better Time management while solving the questions in exams
Last but not least, it equips you to expect what kind of questions the examiner is likely to ask in the exam.
Potassium Iodide (KI) is an important agent for protection against thyroid-related health effects. It is used with silver nitrate to make silver iodide (AgI), a chemical used in making film photography. Potassium Iodide is also used in organic synthesis mainly in the preparation of aryl iodides in the Sandmeyer reaction (Organic Chemistry).