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SvetaKotova1267
@SvetaKotova1267
July 2022
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9) Какую массу имеют 8*10^22 молекул воды?
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larisaorlova65
Verified answer
Масса m=NM/Na ( Na =6*10²³ 1/моль -число Авогадро)
М(Н₂О) =1*2 +16 =18 г/моль =0,018 кг/моль
m=8*10²² *0,018/6*10²³ =0,0024 кг =2,4 г
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Answers & Comments
Verified answer
Масса m=NM/Na ( Na =6*10²³ 1/моль -число Авогадро)М(Н₂О) =1*2 +16 =18 г/моль =0,018 кг/моль
m=8*10²² *0,018/6*10²³ =0,0024 кг =2,4 г