Ответ:N=1,67×10^23
m(H2O)=5
Na=6,02×10^23
M(H2O)=1×2+16=18
N=m/M ×Na
N=5/18 ×6,02×10^23= 1,67×10^23
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Ответ:N=1,67×10^23
m(H2O)=5
Na=6,02×10^23
M(H2O)=1×2+16=18
N=m/M ×Na
N=5/18 ×6,02×10^23= 1,67×10^23