PTHH : \[{{\left( {{C}_{17}}{{H}_{33}}COO \right)}_{3}}{{C}_{3}}{{H}_{5}}+3NaOH\text{ }\xrightarrow{{{t}^{0}}}3{{C}_{17}}{{H}_{33}}COONa\text{ }+{{C}_{3}}{{H}_{5}}{{\left( OH \right)}_{\text{3}}}\text{ }\]

\[{{\text{n}}_{\text{muo }\!\!\acute{\mathrm{a}}\!\!\text{ i}}}=\frac{22,8}{304}=~0,075\text{ }mol\]\[\to \text{ }{{m}_{triolein}}\text{ }=\text{ }\frac{{{n}_{\text{muo }\!\!\acute{\mathrm{a}}\!\!\text{ i}}}}{3}.884\text{ }=0,075\text{ }3.884=22,1\text{ }gam\]

Vậy m = 22,1 (gam)