Помогите, пожалуйста)
2) M(C2H6) = 30 v = 15/30 = 0.5 V = 0.5*22.4 = 11.2 A) 3) M(NaOH)=40 m(NaOH) = 40*3.5 = 140 E) 4) v(O2)= (3.01*10^23)/(6.02*10^23) = 0.5 D) 5) v(N2) = 0.5 V(N2)=0.5*22.4=11.2 D)