Calculate the number of molecules in 1 kg of sodium chloride. [Na = 23 – InterviewSolution

1.

Calculate the number of molecules in 1 kg of sodium chloride. [Na = 23, Cl = 35.5].

Answer»

(a) 1 mol wt. of NaCl = 58.5 g contains 6.022 × 10²³

(b) Contains molecules = 1000/58.5 × 6.023 × 10²³ = 102.96 × 10²³ molecules.

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