Предмет: Физика, автор: maksim221396

Помогите срочно очень прошу. Сколько молекул воды содержится в 1 см3 ее объема? Молярная масса воды 18 × 10 ^ -3 кг / моль, плотность воды 10 ^ 3 кг / м3, число Авогадро 6.02 × 10 ^ 28 моль ^ -1.

vvbarashkovsky: у вас в условии число Авогадро записано не совсем верно

maksim221396: но на ваше решание они не впливает верно?

Ответы

Автор ответа: vvbarashkovsky

Ответ:

Объяснение:

дано V=1см3

N- ?

1) v=m/M=p*V/M=1/18=0.056моль

2) N=v*Na=3,34*10^22 - молекул

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