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प्रश्न
In three moles of ethane (C2H6), calculate the number of molecules of ethane.
संख्यात्मक
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उत्तर
1 mole of C2H6 contains 6.023 × 1023 molecules of ethane.
∴ Number of molecules in 3 moles of C2H6
= 3 × 6.023 × 1023
= 18.069 × 1023
∴ The number of molecules of ethane are 18.069 × 1023
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