How is percentage composition calculated?

Given MgCO₃, find % of Mg.

Admin User

Asked 1 week ago

1 answers

Admin User

Answered 2025 years ago

Molar mass MgCO₃ = 24 + 12 + 3×16 = 84 g. %Mg = (24 ÷ 84) × 100 ≈ 28.6%.

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