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Calculate the number of molecule of sulphur ( S₈ ) present in 16g of solid sulphur. ? |
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Answer» Explanation: We have to find the number of MOLECULES present in 16g of solid sulphurSolution :-➜ The MOLECULAR mass of the sulphur molecule is 32 × 8 = 256 u. ➜ 1 mole of sulphur molecules is equal to 256 grams. ➜ This means 256 g of solid sulphur contains = 6.022 x 10²³ molecules. ➜ Then, 16 g of solid sulphur contains =6.022 x 10²³ / 256 = 16 molecules = 3.76375 x 10²² molecules Therefore, 16 g of S8 contains 3.76 x 10²² molecules |
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