Q. 175.0( 5 Votes )

Give the chemical

Answer :

(Aluminium fluoride a) Ammonia = NH3

The atomic mass of N = 14


The atomic mass of H = 1


Thus, Ratio by mass = N : H × 3


= 14 : 1 × 3


= 14:3


(b) Carbon monoxide = CO


The atomic mass of C = 12


The atomic mass of O = 16


Thus, Ratio by mass = C:O


= 12:16


= 3:6


(c) Hydrogen chloride = HCl


The atomic mass of H = 1


The atomic mass of Cl = 35.5


Thus, Ratio by mass = H : Cl


= 1:35.5


(d) Aluminium fluoride = AlF3


The atomic mass of Al = 27


The atomic mass of F = 19


Thus, Ratio by mass = Al : F × 3


= 27 : 19 × 3


= 27 : 57


= 9 : 19


(e) Magnesium sulphide = MgS


The atomic mass of Mg = 24


The atomic mass of S = 32


Thus, Ratio by mass = Mg : S


= 24 : 32


= 3 : 4


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