Question

calculati masa de CO2 ce se obtin prin arderea a 5t carbune cu un continut de 80%C

Answer 1

C + O2 = CO2
M CO2 = 44 g/mol
M C = 12 g/mol
%C = m C/m cărbune * 100
m C = 80*5/100 = 4 tone = 4000 kg C
12 g C...........44 g CO2
4000 kg C............x
x = 14666,66 kg CO2 = 14,66 tone CO2