Calculate the number of carbon atoms in 5.6 liter of acetylene

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Frost

Chemistry

27 June, 22:15

Calculate the number of carbon atoms in 5.6 liter of acetylene

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Julius Erickson · Answer 1

Molar volume on standard temperature and pressure is 22,4 mol/L.

V (C₂H₂) = 5,6 L.

n (C₂H₂) = V (C₂H₂) : Vm.

n (C₂H₂) = 5,6 L : 22,4 mol/L.

n (C₂H₂) = 0,25 mol.

n (C₂H₂). n (C) = 1 : 2.

n (C) = 2 · 0,25 mol = 0,5 mol.

N (C) = n (C) · Na.

N (C) = 0,5 mol · 6,022·10²³ 1/mol.

N (C) = 3,011·10²³ atoms of carbon in acetylene.