\(C_2H_5COOH+KOH\rightarrow C_2H_5COOK+H_2O\\ n_{C_2H_5COOK}=\dfrac{16,8}{112}=0,15\left(mol\right)\\ n_{C_2H_5COOH}=n_{C_2H_5COOK}=0,15\left(mol\right)\\ V_{ddC_2H_5COOH}=\dfrac{0,15}{1}=0,15\left(l\right)=150\left(ml\right)\\ \Rightarrow V=150\left(ml\right)\)