C6H6 + I2 ---> C6H5I + HI 204 g iodobenzen.......1 mol I2 20,4 g iodobenzen........x moli I2 x = 0,1 moli I2 nr moli = nr molecule/nr lui Avogadro => nr molecule = 0,1 * 6,022 * 10 la 23 molecule => nr molecule = 6.022 * 10 la 22 molec => raspunsul C