n(HF) = V(HF) : Vm = 74 : 22,4 = 3,3 моль
m(HF) = n(HF) × M(HF) = 3,3 × 20 = 66 г
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n(HF) = V(HF) : Vm = 74 : 22,4 = 3,3 моль
m(HF) = n(HF) × M(HF) = 3,3 × 20 = 66 г