Grade 12th pass10 grade science
What is the molecular weight of H2O
?
What is the molecular weight of H2O
?
1 Answer
Yash Patari
Dear student
- The formula for water is H2O. Each molecule contains 2 hydrogen atoms and 1 oxygen atom.
- Relative atomic masses: (H (Hydrogen) = 1, O (Oxygen) = 16).
- Thus, The relative molecular mass of water is -
- M r ( H 2 O ) = 2 ∗ A r ( H ) + A r ( O ) = 2 x 1 + 16 = 18.
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