Question

20g of mgco3 sample decomposes on heating to give co2 and 8g mgo what will be the % purity of mgco3 in sample

Answer 1

heya.....


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%

tysm..#gozmit

Answer 2

Hey mate!

Here's your answer!!

Kindly refer the given attachment.

Hope it helps you! ✌ ✌ ✌