Объяснение:
Mr(C2H4)=2•12+4•1=28
D = Mr(C2H4)/Mr(O2)= 28/(2•16)=28/32= 0,875
p=m/V = (n•M)/(n•Vm) = M/Vm = 28/22.4 = 1,25г/л
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Объяснение:
Mr(C2H4)=2•12+4•1=28
D = Mr(C2H4)/Mr(O2)= 28/(2•16)=28/32= 0,875
p=m/V = (n•M)/(n•Vm) = M/Vm = 28/22.4 = 1,25г/л