Advertisements
Advertisements
प्रश्न
Explain the term molecular formula.
उत्तर
The molecular formula of a compound denotes the actual number of atoms of different elements present in one molecule of the compound.
संबंधित प्रश्न
A compound has the following percentage composition by mass: carbon 14.4%, hydrogen 1.2% and chlorine 84.5%. The relative molecular mass of this compound is 168, so what is its molecular formula?
A gaseous compound of nitrogen and hydrogen contains 12.5% hydrogen by mass. Find the molecular formula of the compound if its relative molecular mass is 37.
[N = 14, H = 1].
A compound made up of two elements X and Y has an empirical formula X2Y. if the atomic weight of X is 10 and that Y is 5 and the compound has a vapour density (V.D.) 25, find its molecular formula.
Calculate the mass of iron in 10 kg of iron ore which contains 80% of pure ferric oxide.
A gaseous hydrocarbon contains 82.76% of carbon. Given that its vapour density is 29, find its molecular formula.
A compound with empirical formula AB2 has the vapour density equal to its empirical formula weight. Find its molecular formula.
Find the molecular formula of a hydrocarbon having vapour density 15, which contains 20% of Hydrogen.
A metal M forms a volatile chloride containing 65.5% chlorine. If the density of the chloride relative to hydrogen is 162.5, find the molecular formula of the chloride (M = 56).
A compound X consists of 4.8% carbon and 95.2% bromine by mass. If the vapour density of the compound is 252, what is the molecular formula of the compound?
Arrange the following according to the instruction given in bracket:
C2H2, C3H6, CH4, C2H4 (In the increasing order of the molecular weight)
