When 0.0976g of Mg was heated in air, 0.1618g of MgO was produced. What is the %of Mg in MgO??
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Solution: In order to find out Weight by weight percent you need to do :-
→ x/(x + y) × 100; where
- x = solute
- y = solvent
- x + y = solution/compound
→ Weight of Mg/Weight of MgO × 100
→ 0.0976/0.1618 × 100
→ 60.32%
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Different ways of finding out concentration are,
- W/W % (No Unit)
- Mole Fraction (No Unit)
- Molarity (Unit is mol/l or M)
- Molality (Unit is mol/kg or m)
- Normality (Unit is N)
- Formality (Unit is F)
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