Предмет: Химия, автор: mashastolpnik

Обчислити відносну молекулярну масу речовини
N2 HNO3 cu(OH)2 CO 3

Ответы

Автор ответа: Ihelpissl
1

Ответ:

N2 - 28 г/моль

HNO3 - 63 г/моль

Cu(OH)2 - 97.5 г/моль

CO3 - 60 г/моль

Объяснение:

Для обчислення відносної молекулярної маси (М) речовини потрібно просумувати атомні маси всіх атомів в молекулі.

N2: 

В амоніаку (NH3) молекулярна маса атома азоту (N) = 14 г/моль.

Отже, молекулярна маса N2 = 2 * 14 г/моль = 28 г/моль.

HNO3:

Маса атома водню (Н) = 1 г/моль

Маса атома азоту (N) = 14 г/моль

Маса атома кисню (О) = 16 г/моль

M(HNO3) = 1 + 14 + (3 * 16) = 63 г/моль

Cu(OH)2:

Маса атома міді (Cu) = 63.5 г/моль

Маса атома кисню (О) = 16 г/моль

Маса атома водню (Н) = 1 г/моль

M(Cu(OH)2) = 63.5 + (2 * 16) + (2 * 1) = 97.5 г/моль

CO3:

Маса атома вуглецю (C) = 12 г/моль

Маса атома кисню (О) = 16 г/моль

M(CO3) = 12 + (3 * 16) = 60 г/моль


kimkarina953: Здравствуйте. Не могли бы помочь с химией пожалуйста умолляю
Автор ответа: oficiant
2

Mr(N2)= 14×2=28

Mr(HNO3)= 1×1+14×1+1+16×3=63

Mr(Cu(OH)2)= 64×1+16×2+1×2= 98

Mr(CO3)= 12×1+16×3=60


kimkarina953: Здравствуйте. Не могли бы помочь с химией пожалуйста умолляю
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