1. Find out the number of moles of atoms in the following samples of atoms.
(a) 60 g Carbon
(b)
160 g Sulphur
20 g Hydrogen
160 g Oxygen
(e) 42 g Nitrogen
(f) 92 g Sodium
71 g Chlorine
[Atomic mass C=14, S = 32, H =1, 0 = 16, N=14, Na = 23, Cl = 35.5]
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