Maharashtra State BoardHSC Science (General) 11th
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Solve problem: Calculate the number of an atom of the following (Given: Atomic mass of I = 127 u). 254 u of iodine (I) - Chemistry

Sum

Solve problem:

Calculate the number of an atom of the following (Given: Atomic mass of I = 127 u).

254 u of iodine (I)

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Solution

254 u of iodine (I) = x atoms

Atomic mass of iodine (I) = 127 u

∴ Mass of one iodine atom = 127 u

∴ x = `(254  "u")/(127  "u")` = 2 atoms

Number of iodine atoms in 254 u = 2 atoms

Concept: Atomic and Molecular Masses
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Chapter 1: Some Basic Concepts of Chemistry - Exercises [Page 11]
Q 4. (D)(a)
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Balbharati Chemistry 11th Standard Maharashtra State Board
Chapter 1 Some Basic Concepts of Chemistry
Exercises | Q 4. (D)(a) | Page 11
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