Question

20 gram of calcium carbonate on heating gives when 11.2 gram of calcium oxide and 4.48 litres of Co2 at ntp show that the results illustrate the law of conservation of mass​

Answer 1

atomic mass of calcium carbonate=20 grams

molecular mass of calcium carbonate =caco3

100.086

the calcium carbonate then on heating

=11.2

calcium oxide Cao

= 36

the law of conservation of mass

20/100=20 grams

11.2/100.08=11.2 gm