Question

30 g CaCO3 on heating gave 4.4 g of CO2 and 5.6 g of Cao. Show that
these observations are in agreement with law of conservation of mass.​

Answer 1

Answer:

check the question

Explanation:

CaCO3 ~ CaO + CO2

(1mol) ~ (1mol) + (1mol)

(100g) ~ (56g) + (44g )

30g ~ 5.6g + 4.4g ( given)

CaCO3 : 30/100 : 0.3 mol

CaO : 5.6/56 : 0.1 mol

CO2 : 4.4/44 : 0.1 mol

Note :

take CaCO3 as 10g then it's proved