Example 3.2 - Chapter 3 Class 9 - Atoms And Molecules

Last updated at August 12, 2026 by

Calculate the formula unit mass of CaCl2 - Teachoo Chemistry - Examples from NCERT Book

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Example 3.2 Calculate the formula unit mass of CaCl2. Atomic mass of Calcium (Ca) = 1 u Atomic mass of Chlorine (Cl) = 14 u Atomic mass of Oxygen = 16 u Relative molecular mass of CaCl2 = Atomic Mass of Calcium + 2 × Atomic Mass of Chlorine = 40 + 2 × 35.5 = 40 + 71 = 111 u

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