Nitrogen occupies a volume of 14 liters. Calculate the number of nitrogen molecules in a given volume of gas.
March 31, 2021 | education
| Given:
V (N2) = 14 l
To find:
N (N2) =?
Decision.
N = ν * Na;
Na = 6.02 * 10 ^ 23 – Avogadro’s number, 1 / mol;
ν (N2) = V / Vm = 14 / 22.4 = 0.625 mol;
Vm = 22.4 l / mol – molar volume of any gas under normal conditions (n.v.);
N (N2) = 0.625 * 6.02 * 10 ^ 23 = 3.76 * 10 ^ 23.
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