дано
m(C6H5CL) = 281.25 g
W(прим) = 20%
m(C6H5OH)-?
m(C6H5CL) = 281.25 - (281.25 * 20% / 100%) = 225 g
C6H5CL+NaOH-->C6H5OH+NaCL
M(C6H5CL) = 112.5 g/mol
n(C6H5CL) = m/M = 225 / 112.5 = 2 mol
n(C6H5CL) = n(C6H5OH) = 2 mol
M(C6H5OH) = 94 g/mol
m(C6H5OH) = n*M = 2*94 = 184 g
ответ 184 г
Объяснение:
дано
m(C6H5CL) = 281.25 g
W(прим) = 20%
m(C6H5OH)-?
m(C6H5CL) = 281.25 - (281.25 * 20% / 100%) = 225 g
C6H5CL+NaOH-->C6H5OH+NaCL
M(C6H5CL) = 112.5 g/mol
n(C6H5CL) = m/M = 225 / 112.5 = 2 mol
n(C6H5CL) = n(C6H5OH) = 2 mol
M(C6H5OH) = 94 g/mol
m(C6H5OH) = n*M = 2*94 = 184 g
ответ 184 г
Объяснение: