n(H2О) = 3/18 = 0.167 моль
N(H2О) = 0.167 * 6.02*10^23 = 10^23
10^23 молекул
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n(H2О) = 3/18 = 0.167 моль
N(H2О) = 0.167 * 6.02*10^23 = 10^23
10^23 молекул