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sanechka8811
@sanechka8811
June 2022
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сколько атомов имеется в 13,5 г алюминия?
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DJToxa
Verified answer
N=n*Na
n=m/M
M(Al)=27г/моль
n(Al)=13.5/27=0.5моль
N(Al)=0.5*6*10^23-3*10^23 атомов.
39 votes
Thanks 55
тайная
Verified answer
Дано:
m(Al) = 13,5 г
Найти: N(Al)
Решение:
n = m\M
n(Al) = 13,5г\27 г\моль = 0,5 моль
N= n ∙ Na
N(Al) = 0,5 моль ∙ 6,02∙ 10²³ моль = 3,01 ∙10²³ атомов
Ответ: N(Al) = 3,01 ∙10²³
атомов
34 votes
Thanks 90
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Answers & Comments
Verified answer
N=n*Nan=m/M
M(Al)=27г/моль
n(Al)=13.5/27=0.5моль
N(Al)=0.5*6*10^23-3*10^23 атомов.
Verified answer
Дано:m(Al) = 13,5 г
Найти: N(Al)
Решение:
n = m\M
n(Al) = 13,5г\27 г\моль = 0,5 моль
N= n ∙ Na
N(Al) = 0,5 моль ∙ 6,02∙ 10²³ моль = 3,01 ∙10²³ атомов
Ответ: N(Al) = 3,01 ∙10²³ атомов