Compute the moles of HCl in the sample of toilet bowl cleaner as well as percentage of HCl in the cleaner. Mass of beaker with cleaner 71.336, mass of empty beaker: 70.816, mass of cleaner:0.52 g, pH at equivalence point 7, buret reading at equivalence point 8.1 mL, preliminary buret reading 0.00 mL, volume of NaOH added 8.1 mL, molar mass of HCl 36.45, add about 60mL of deionized water as well as titrate with NaOH