Question

по м о гите !!!!!!!!!!

Answer 1

Ответ:

дано

m(уголь) = 1 kg = 1000 g

W(C) = 86%

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V(NO2+CO2)-?

m(чист  C) = 1000 * 86% / 100% = 860 g

3C+4HNO3-->3NO2↑+4CO2↑+2H2O

M(C) = 12 g/mol

n(C) = m/M = 860 / 12 = 71.67 mol

3n(C) = 3n(NO2)

V(NO2) = n*Vm = 71.67 * 22.4 = 1605.4 L

3n(C) = 4n(CO2)

n(CO2) = 71.67*4 / 3 = 95.56 mol

V(CO2)= 95.56 * 22.4 = 2140.544 L

V(NO2+CO2) = V(NO2) + V(CO2) = 1605.4 + 2140.5 = 3745.9 L

ответ 3745.9 L

Объяснение: