<span><span>Дано:</span></span>
<span><span><span><span>ν</span></span>(H2O) = 11моль</span></span>
<span><span>NA=6.02*10^23моль^-1</span></span>
<span><span>N(H2O) -?</span></span>
<span><span>Решение:</span></span>
<span><span><span><span>ν</span></span> = N/Na</span></span>
Ν= ν*NA= 11моль*6,02*1023моль-1= 66,22 * 1023 моль-1
Ответ: N=66.22*10^23 моль^-1