Advertisements
Advertisements
प्रश्न
Calculate the molecular mass of C2H4.
Advertisements
उत्तर
Molecular mass of C2H4 = 2 × Atomic mass of C + 4 × Atomic mass of H
= (2 × 12 + 4 × 1) u
= (24 + 4) u
= 28 u
APPEARS IN
संबंधित प्रश्न
Calculate the molecular mass of O2.
Calculate the molecular mass of CO2.
What is meant by saying that ‘the molecular mass of oxygen is 32’ ?
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 compounds :
Ethyne, C2H2
(Atomic masses : C = 12 u ; H = 1 u)
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
Calculate the weight/mass of: `10^22` atoms of carbon
Molar mass of CO2 is 42g.
Write the name of the following compound and deduce its molecular mass.
NaHCO3
Calcium carbonate react with dilute hydrochloric acid as given below:
\[\ce{CaCO3 + 2HCl -> CaCl2 + H2O + CO2}\]
What is the volume of carbon dioxide liberated at S.T.P. at the same time?
