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Chemistry CBSE Live product
Class 9 (2026-27)
Atomic Foundations of Matter
Characteristics and Mass of Ionic & Covalent Compounds
7.
Formula unit mass
Question:
2
m.
Identify
the correct answer for the
given
questions:
1.
The formula unit mass of calcium chloride \((CaCl_{2})\) is
\(146\ u\)
\(91\ u\)
\(111\ u\)
\(75.5\ u\)
2.
Which conclusion can be drawn about the calculation of formula unit mass?
Only the masses of non-metal ions are added
The atomic masses of ions are multiplied by their charges
Only the masses of metal ions are added
The atomic masses of all atoms present in one formula unit are added
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