calculate the number of mole and molecules of ethane in 120g of ethane
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Answer:
4 moles and 4×avogadro no.
Explanation:
Ethane formulas is C2H6
molar mass of ethane is 12×2+1×6=30
no.of moles = given mass / molar mass
no.of moles =120/30
=4 mol
no of molecules = 4×NA
=4×6.623 × 10²³
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