Предмет: Химия, автор: evgenia20001

при нагревании 198,6 смеси карбоната цезия и гидрокарбоната цезия выделлось 0,5 моль газа.определить массовую долю в данной смеси

Ответы

Автор ответа: хихимик
0
2CsHCO3 = Cs2CO3 + CO2 + H2O
n(CsHCO3) = 2n(CO2) = 1 моль
m
(CsHCO3) = 194 г
w(CsHCO3) = 194/198,6= 0,9768 или 97,68%






Автор ответа: mg58
0
Но почему вы берёте только один компонент смеси? Карбонат тоже будет разлагаться на оксид и углекислый газ...
Автор ответа: хихимик
0
карбог=наты щелочных металлов (кроме лития) при нагревании не разлагаются
Автор ответа: mg58
0
А ведь и впрямь так! Спасибо, что напомнили!
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