
2 Зат массасы. Молекулалар саны. Зат мөлшері. Авагадро заңы
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
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Medium
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13 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Зат мөлшерінің формуласы
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Халықаралық бірліктер жүйесінде заттың мольдік массасының өлшем бірлігі
Кг
кг/моль.
моль-1
г/моль.
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Массасы 1 кг судағы зат мөлшері. М(Н2О)=18·10-3 кг/моль.
55,6 моль.
30 моль.
20 моль.
50 моль.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Көлемі 1 см3 ауадағы молекулалар саны (NА=6,02·1023 моль-1, ρ=1,29 кг/м3,
М(ауа)=0,029 кг/моль)
≈2,7·10-19
≈2,3·10-19
≈2,7·10-19
≈2,7·10-20
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Көлемі 7 л ыдыстағы тығыздығы 2 кг/м)болса, азот молекулаларының саны
(NА=6,02·1023 моль-1, М(азот)= 0,028 кг/моль)
≈6·1023
≈4,5·1023
≈1·1023
≈3·1023
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Көлемі 2 м3 алюминийдегі зат мөлшері (М=27·10-3 кг/моль, р=2,7·103 кг/м3)
2·105 моль.
1,5·105
2·104
105
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Азоттың мольдік массасы 0,028 кг/моль болса, азот молекуласының массасы:
(NА= 6,02·1023 моль-1)
≈4,65·10-26кг
≈3,65·10-20кг
≈4,74·10-20кг
≈4,76·10-26 кг
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