n1 moli C6H6 + HONO2 ⇒ C6H5-NO2 + H2O
n2 moli C6H6 + 3HONO2 ⇒ C6H3(NO2)3 + 3H2O
n3 moli C6H6 nereactionat
n = n1+ n2 + n3 = 1560/78 = 20 kmoli
amestec nitrant : a /3 = b/2 = c/1= k/6 a = k/2 kmoli HNO3; b =k/3 kmol H2SO4; c = k/6 kmoli H2O
63·k/2 + 98·k/3 + 18·k/6 = 6045 kg 189k + 196k + 18k = 36270 k = 9o
a = 45 kmoli HNO3
n1 + 3n2 = 45 (n1 + n2)·100/n = 85 n1 + n2 = 85·20/100 = 17
n1 + n2 = 17
-------------
2n2 = 28 n2 = 14 kmoli Cu = n2·100/n = 1400/100 = 14%