1) ответ:
n=N/Na
6.02 * 10^23 * 3 = 18.06 * 10^23
n = 18.06 * 10^23 /(6.02 * 10^23) = 3 моль
Объяснение:
В воде H2O есть всего 3 атома - 2 атома водорода и 1 атом кислорода
Значит, в воде будет в 3 раза больше атомов, чем молекул
тогда умножаем данное кол-во молекул на 3
6.02 * 10^23 * 3 = 18.06 * 10^23
теперь через формулу n=N/Na находим кол-во вещества(моли), где Nа - постоянна Авогадро(6.02 * 10^23)
2) ответ:
N=Nα×n отсюда N=6,02*10²³×3=18,06*10²³ атомов
3) ответ:
n(CO2) = N/Na = 3.01*10^23/6.02*10^23 = 0.5 моль
4) ответ:
N(O)=0,5*4*NA=05*4*6,02*10^23=12,04*10^23 атомов.
5) ответ:
n (H2O) = 0,9 / 18 = 0,05 (моль).
gprs is the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the first of the people who are not in the
1) этиламин - первичный амин
2) диметилэтиламин - третичный амин