w(E)=n×M(E)/M(вещества)
M(O)=16
M(H2O)=18
w(O)=1×16/18≈0.89=89%
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w(E)=n×M(E)/M(вещества)
M(O)=16
M(H2O)=18
w(O)=1×16/18≈0.89=89%