Advertisements
Advertisements
प्रश्न
The gram molecular mass of oxygen molecule is ______.
विकल्प
16 g
18 g
32 g
17 g
Advertisements
उत्तर
The gram molecular mass of the oxygen molecule is 32 g.
Explanation:
The gram molecular mass of an oxygen molecule (O2) is:
Oxygen atom (O) = 16 g/mol
Oxygen molecule (O2) = 16 × 2 = 32 g/mol
APPEARS IN
संबंधित प्रश्न
Define 'molecular mass' of a substance.
Calculate the molecular masses of the following compounds :
Methanol, CH3OH
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 :
Oxygen, O2
(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 :
Methane, CH4
(Atomic masses : C = 12 u ; H = 1 u)
Calculate the molecular masses of the following compounds :
Ethane, C2H6
(Atomic masses : C = 12 u ; H = 1 u)
Calculate the weight/mass of: `10^22` atoms of carbon
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 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)
A gas occupied 360 cm3 at 87°C and 380 mm Hg pressure. If the mass of gas is 0.546 g, find its relative molecular mass.
