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प्रश्न
What is meant by saying that ‘the molecular mass of oxygen is 32’ ?
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उत्तर
The statement, "the molecular mass of oxygen is 32", means that a molecule of oxygen is 32 times heavier than 1/12th of the mass of a `""^12"_6C` atom.
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संबंधित प्रश्न
Calculate the molecular mass of NH3.
Calculate the molecular masses of the following compounds :
Ethane, C2H6
(Atomic masses : C = 12 u ; H = 1 u)
Calculate the formula masses of the following compounds :
Sodium oxide, Na2O
Calculate the weight/mass of a molecule of NH3.
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.
Calcium carbonate is decomposed on heating in the following reaction
CaCO3 → CaO + CO2
How many moles of CO2 are there in this equation?
What are ionic and molecular compounds? Give examples.
The formula unit mass of Ca3 (PO4)2 is ————.
Write the name of the following compound and deduce its molecular mass.
MgCl2
Calcium carbonate react with dilute hydrochloric acid as given below:
\[\ce{CaCO3 + 2HCl -> CaCl2 + H2O + CO2}\]
What is the mass of 5 moles of calcium carbonate? (Relative molecular mass of calcium carbonate is 100)
