Chapter 9
Atomic Foundations of Matter
CBSE Class 9
Science Solutions
Educart Science class Class 9 NCERT Exemplar cover
Question:

Find the molecular mass of methane (CH₄).

Atomic mass — C = 12 u; H = 1 u. [Pg. No. 179]

Answer: Verified

Molecular mass of CH₄ = (1 × 12) + (4 × 1)

=12+4=16 u= 12 + 4 = 16 \text{ u}

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