# 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)

#### 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

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#### APPEARS IN

Balbharati Chemistry 11th Standard Maharashtra State Board
Chapter 1 Some Basic Concepts of Chemistry
Exercises | Q 4. (D)(a) | Page 11