CBSE · Class 11 · Chemistry · Some Basic Concepts of ChemistryWhat is the mass percentage of oxygen in water ($H2O$)? (Given atomic masses: H = 1 u, O = 16 u)
Step-by-Step Solution
Molar mass of $H_2O = (2 \times 1) + 16 = 18\text{ g/mol}$. \nMass percentage of Oxygen $= \frac{\text{Mass of Oxygen}}{\text{Molar mass of } H_2O} \times 100 = \frac{16}{18} \times 100 \approx 88.89%$.
Detailed Options Breakdown
Option : 88.89% (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: 11.11%
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Some Basic Concepts of Chemistry.
Option 2: 44.44%
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Some Basic Concepts of Chemistry.
Option 3: 50.00%
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Some Basic Concepts of Chemistry.
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