1)
дано
N(SO2) = 12.04*10^23
------------------------------
V-?
V(сосуда) = V(SO2)
V(SO2) = Vm * N(SO2) / N(A) = 22.4 * 12.04*10^23 / 6.02*10^23 = 44.8 L
ответ 44.8 л
2)
дано
m(AlCL3) = 2 g
------------------------
n(AlCL3)-?
M(AlCL3)= 123.5 g/mol
n(AlCL3) = m/M = 2 / 123.5 = 0.016 mol
ответ 0.016 моль
3)
дано
m(FeCL3) = 120 g
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m(Fe)-?
m(CL2)-?
2Fe+3CL2-->2FeCL3
M(FeCL3) = 162.5 g/mol
n(FeCL3) = m/M = 120 / 162.5 = 0.74 mol
M(Fe) = 56 g/mol
M(Cl2) = 71 g/mol
2n(Fe) = 2n(FeCL3) = 0.74 mol
m(Fe) = n*M = 0.74 * 56 = 41.44 g
3n(CL2) = 2n(FeCL3)
n(CL2) = 2*0.74 / 3 = 0.49 mol
m(CL2) = n*M = 0.49 * 71 = 34.79 g
ответ 41.44 г , 34.79 г
4)
дано
V(HCL) = 12 L
------------------
m(CL2)-?
m(H2)-?
H2+CL2-->2HCL
n(HCL) = V(HCL) / Vm = 12 / 22.4 = 0.54 mol
n(CL2) = n(H2) = 2n(HCL)
n(CL2) = n(H2) = 0.54 / 2 = 0.27 mol
M(H2) = 2 g/mol
m(H2) = n*M = 0.27 * 2 = 0.54 g
M(CL2) = 71 g/mol
m(CL2) =n*M =0.27 * 71 = 19.17 g
ответ CL2 - 19.17 г, H2 - 0.54 г