Advertisements
Advertisements
Question
Calcium carbonate is decomposed on heating in the following reaction
CaCO3 → CaO + CO2
How many moles of CO2 are there in this equation?
Advertisements
Solution
One mole.
APPEARS IN
RELATED QUESTIONS
Calculate the molecular mass of O2.
Calculate the molecular mass of NH3.
Calculate the molecular mass of ethanoic acid, CH3COOH.
(Atomic masses : C = 12 u ; H = 1 u ; O = 16 u)
Calculate the molecular masses of the following :
Ammonia, NH3
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
What is meant by the ‘molar mass’ of a substance ? State the unit in which molar mass is usually expressed.
Calculate the relative molecular masses of the following
(NH4)2 Cr2O7
[At mass : C = 12, H = 1, O = 16, Ci = 35.5, N = 14, Cu = 63.5, S = 32, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
Calculate:
The gram molecular mass of chlorine if 308cm3 of it at STP weighs 0.979 g.
Calculate:
The mass of oxygen in 2.2 litres of CO2 at STP.
The gram molecular mass of oxygen molecule is ______.
Calcium carbonate is decomposed on heating in the following reaction
CaCO3 → CaO + CO2
Calculate the gram molecular mass of calcium carbonate involved in this reaction.
