20g of Mg2co3 sample decomposes on heating to give co2 and 8 g Mgo what will be ℅purity of Mg2co3 in sample

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Solution

MgCO₃⇒MgO+CO₂

84g 40g

y g 8 g (y is variable used)

y=848/40=16.8 g

Percentage purity of MgCO₃ =16.8100/20=84%.

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20g of Mg2co3 sample decomposes on heating to give co2 and 8 g Mgo what will be ℅purity of Mg2co3 in sample

MgCO₃⇒MgO+CO₂ 84g 40g y g 8 g (y is variable used) y=84*8/40=16.8 g Percentage purity of MgCO₃ =16.8*100/20=84%.

MgCO₃⇒MgO+CO₂

84g 40g

y g 8 g (y is variable used)

y=848/40=16.8 g

Percentage purity of MgCO₃ =16.8100/20=84%.