Вопрос школьника по предмету Химия
Решите задачу : какая масса хлорида натрия образуется из 4.6 грамм натрия и 3 литра хлора
Ответ учителя по предмету Химия
2Na+Cl2=2NaCl
n(Cl2) = V/Vm = 3л / 22,4л/моль = 0,134моль
n(Na) = m/M = 4,6г / 23г/моль = 0,2моль
n(NaCl) = n(Cl) + n(Na) = 0,334 моль
m(NaCl) = n*M = 58,5г/моль * 0,334 моль = 19,54г
Ответ: 19,54
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