Вопрос школьника по предмету Химия
Хей, ребят, помогите с задачкой
к раствору массой 50 г с массовой долей карбоната калия 26,5% прилили раствор содержащий 24,5 грамм серной кислоты Определить объем образовавшегося газа если реакция протекала при нормальных условиях
Ответ учителя по предмету Химия
K2CO3+H2SO4=K2SO4+H2O+CO2
n (H2SO4)=0.25 моль
m (K2CO3)= 13.25 г
n (K2CO3)=0.1 моль
H2SO4 в избытке
V (CO2)=2.24л
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13/51-х=6/51