1)
дано
N(F2) = 0.6*10^23 молекул
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n(F2)-?
m(F2)-?
V(F2)-?
N(A) = 6.02*10^23 молекул
M(F2) = 38 g/mol
Vm = 22.4 L/mol
n(F2) = N(F2) / N(A) = 0.6*10^23 / 6.02*10^23 = 0.1 mol
m(F2) = n(F2) * M(F2) = 0.1*38 = 3.8 g
V(F2) = n(F2) * Vm = 0.1 * 22.4 = 2.24 L
ответ 0.1 моль, 3.8 г, 2.245 л
2)
дано
N(N2) = 1.3*10^23 молекул
--------------------------
n(N2)-?
m(N2)-?
V(N2)-?
N(A) = 6.02*10^23 молекул
M(N2) = 28 g/mol
Vm = 22.4 L/mol
n(N2) = N(N2) / N(A) = 1.3*10^23 / 6.02*10^23 = 0.2 mol
m(N2) = n(N2) * M(N2) = 0.2*28 = 5.6 g
V(N2) = n(N2) * Vm = 0.2 * 22.4 = 4.48 L
ответ 0.2 моль, 5.6 г, 4.48 л