The mass of $CaO$ obtained by the decompostion of 2 moles of $CaC{O}_3$ is:
Molar mass of calcium carbonate = 100 g/mol
Molar mass of calcium oxide = 56 g/mol

Q. The volume of $C{O}_2$ obtained at STP by the decompostion of 10 g of calcium carbonate is:
(molar mass of calcium carbonate = 100 $gmo{l}^{-1}$

Q. The volume of $C{O}_2$ obtained at STP by the decompostion of 10 g of calcium carbonate is:
(molar mass of calcium carbonate = 100 $gmo{l}^{-1}$

Q. $40g$ of calcium was extracted from $56g$ of calcium oxide
(Atomic mass of $Ca=40,O=16$)
i) What mass of oxygen is there in $56g$ of calcium oxide?
ii) How many moles of oxygen atoms are there in this?
iii) How many moles of calcium atoms are there in $40g$ of calcium?
iv) What mass of calcium will be obtained from $1000g$ of calcium oxide?

Q. The mass of oxygen gas obtained by the decompostion of 57.93 g of silver oxide is:
(Molar mass of $A{g}_{2}O=231.735{\text{g mol}}^{-1}$)

Q. Statement 1: A $1.0$ g sample of calcium citrate $C{a}_3(C_6{H}_5{O}_7{)}_2$ (molar mass $=498$ g/mol), contains more $Ca$ than a $1.0$ g sample of calcium carbonate, $CaC{O}_3$(molar mass $=100$ g/mol)
Statement 2: There are more $Ca$ atoms in $1.0$ mol of calcium carbonate than in $1.0$ mol of calcium citrate.