Ответ:
дано
m(уголь) = 1 kg = 1000 g
W(C) = 86%
-------------------
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:
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Answers & Comments
Ответ:
дано
m(уголь) = 1 kg = 1000 g
W(C) = 86%
-------------------
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: