HCl + NaOH → NaCl + H2O
No. of moles of NaOH = MV/1000
= 3.2X60/1000
= 0.192 mol
**M is your concentration of solution, V is the volume of solution either in cm³ or mL cuz they are equal**
1 mol of NaOH reacted with 1 mol of HCl. No. of moles of HCl needed to react with 0.192mol of NaOH
= 0.192x1/1
= 0.192mol
Volume of HCl = no. of moles x 1000 / M
= 0.192 x 1000 / 4.0
= 48mL
