Chemistry
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#percentagecomposition
How is percentage composition calculated?
Given MgCO₃, find % of Mg.
Curious Corner
Sep 01, 2025
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Molar mass MgCO₃ = 24 + 12 + 3×16 = 84 g. %Mg = (24 ÷ 84) × 100 ≈ 28.6%.
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