n(H2)=m(H2)/Mr(H2)=12/2=6моль.
N=N(A)*n=6.02*10^23*6= 36.12*10^23=3.612*10^24молекул)
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n(H2)=m(H2)/Mr(H2)=12/2=6моль.
N=N(A)*n=6.02*10^23*6= 36.12*10^23=3.612*10^24молекул)