дано
m(ppa Br2) = 96 g
W(Br2) = 6%
m(C6H2Br3NH2) - ?
m(Br2) = m(ppa Br2) *W(Br2) / 100%
m(Br2)= 96*6% / 100% = 5.76 g
C6H5NH2+3Br2-->C6H2Br3NH2+3HBr
M(Br2) = 80*2= 160 g/mol
n(Br2) = m/M = 5.76 / 160= 0.036 mol
3n(Br2) = n(C6H2Br3NH2)
n(C6H2Br3NH2) = 0.036*1/3 = 0.012 mol
M(C6H2Br3NH2) = 330 g/mol
m(C6H2Br3NH2) =n*M = 0.012 * 330 = 3.96 g
ответ 3.96 гр
Объяснение:
дано
m(ppa Br2) = 96 g
W(Br2) = 6%
m(C6H2Br3NH2) - ?
m(Br2) = m(ppa Br2) *W(Br2) / 100%
m(Br2)= 96*6% / 100% = 5.76 g
C6H5NH2+3Br2-->C6H2Br3NH2+3HBr
M(Br2) = 80*2= 160 g/mol
n(Br2) = m/M = 5.76 / 160= 0.036 mol
3n(Br2) = n(C6H2Br3NH2)
n(C6H2Br3NH2) = 0.036*1/3 = 0.012 mol
M(C6H2Br3NH2) = 330 g/mol
m(C6H2Br3NH2) =n*M = 0.012 * 330 = 3.96 g
ответ 3.96 гр
Объяснение: