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Mass of 1 liter ethanol = 800 gram

Molar Mass of ethanol = 46.07 gram/mol

Therefore,

Number of moles in 1 liter ethanol = 800/46.07 = 17.365 mol

Number of molecules in 1 mol of ethanol = 6.023 × 10²³ molecules

Therefore,

Number of molecules in 1 liter of ethanol = 17.365 × 6.023 × 10²³ molecules = 104.599 × 10²³ molecules = 1.05 × 10²⁵ molecules

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Saurabh Gupta

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2y ago

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