now that you have determine the concentration of the base used to titrate the HCL in the pipette and you have recorded the volume of the HCL sample (5.oo mL) and the number of mL of base used you can calculate the concentraion of hcl solution.
first calculate the number of moles of based used ( be careful about volume in units: moles based)=(Vbase)(Mbase) answer in mol base. 2. This is equal to the number of moles of HCL present in the 5.00mL of HCL delivered to the flask. CAlculate the molarity of the HCL.