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प्रश्न
Define gram molecular mass of a substance. How much is the gram molecular mass of oxygen ?
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उत्तर
Gram molecular mass refers to the mass of a molecules in one mole of molecules of that substance. It is equal to the gram molecular weight of that element.
Oxygen exists as a diatomic molecule (O2); therefore, gram molecular mass of oxygen is 32 grams.
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संबंधित प्रश्न
Calculate the formula unit mass of K2CO3 given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the molecular masses of the following compounds :
Carbon disulphide, CS2
(Atomic masses : H = 1 u ; S = 32 u ; C = 12 u)
Calculate the molecular masses of the following :
Chlorine, Cl2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
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 formula masses of the following compounds :
Calcium carbonate
Calculate the relative molecular mass of ZnCO3.
[Zn = 65, O = 16, C = 12]
Molar mass of CO2 is 42g.
Write the name of the following compound and deduce its molecular mass.
NaOH
Write the name of the following compound and deduce its molecular mass.
NaHCO3
