Question

10.0g of caco3 on heating gave 4.4g of co2 andXg of cao applying law of conservation of mass calculated the mass of cao

Answer 1

heya friend !!☺☺

here's your answer!!☺☺⬇⬇
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Total mass of CaCO3 = Mass of CO2 + mass Mass of X (CaO)

= 10.0 = 4.4 + x

= x = 10.0 - 4.4

hence, x = 5.6
Hence the mass of CaO is 5.6 gram.

This is in accordance to, "The total mass of the reactants NAD products remain the same during a chemical reaction."
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hope it helps you!!☺☺⬆⬆

Answer 2

hey bro. here is ur ans
reaction= CaCo3=Cao+Co2 then molar mass of caco3 is 100g/mol, but they have given 10g hence divide molar mass by 10 and then u will get 10 g
then similarly divide whole reactions by 10
I.e Cao has molar mass of 56g/mol then divide by 10 give 5.6 g ,,,,,
similarly ,. molar mass of Co2 is 44g/mol then divide it u will get 4.4 g hence law of conservation of mass is been conserved here and as u have seen Cao has mass of 5.6g hence that's the ans , thanks for question