NaOH + HCl => NaCl + H2O
1 mol of NaOH react with 1 mol of HCL
The molecular mass of NaOH is 39.997
The molecular mass of HCl is 36.46
Moles of HCl
=18.73/36.46
=0.5137
Mole of NaOH
=23.26/39.997
=0.5815
moles of NaOH >moles of HCl
so there are not enough HCl
the answer is HCl