Calculate the number of :
(i) molecules [S = 32]
(ii) atoms in 192 g. of sulphur. [S8]
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Calculate the volume occupied by 53.5 g of Cl2. [Cl = 35.5]
Calculate the number of molecules in 109.5 g of HCl. [H = 1, Cl = 35.5]
Calculate the mass of Na which will contain 6.023 × 1023 atoms. [Na = 23]
Calculate the no. of atoms of potassium present in 117 g. of K. [K = 39]