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Milaya2704
@Milaya2704
September 2021
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массовая доля азота равна 35% в соединении. 1) NH4NO2, 2) NH4NO3, 3) KNO3, 4) NaNO3. Правильный ответ надо решить. Заранее спасибо.
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Veronicagitarowe
1.Mr(NH4NO2)=64 г/моль; Ar(N2)=28
W(N2)=28/64*100%=44%
2.Mr(NH4NO3)=80 г/моль;Ar(N2)=28
W(N2)=28/80*100%=35%-это правильный
3.Mr(KNO3)=101 г/моль;Ar(N)=14
W(N)=14/101*100%=14%
4.Mr(NaNO3)=85 г/моль;Ar(N)=14
W(N)=14/85*100%=16%
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Answers & Comments
W(N2)=28/64*100%=44%
2.Mr(NH4NO3)=80 г/моль;Ar(N2)=28
W(N2)=28/80*100%=35%-это правильный
3.Mr(KNO3)=101 г/моль;Ar(N)=14
W(N)=14/101*100%=14%
4.Mr(NaNO3)=85 г/моль;Ar(N)=14
W(N)=14/85*100%=16%