V He = 112 л
n He, m He - ?
n He = V/Vm = 112/22,4 = 5 моль
m He = nM = 5*4 = 20 г
Ответ : 5 моль, 20 г
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V He = 112 л
n He, m He - ?
n He = V/Vm = 112/22,4 = 5 моль
m He = nM = 5*4 = 20 г
Ответ : 5 моль, 20 г