Answer Happy

B. Analysis of an Unknown Acid Trial 1 Trial 2 Trial 3 Mass of bottle + unknown 1.0317 g 1.0317 g Mass of bottle 1.0317 g 0.9445 g 0.9240 g 0.9496 g Mass of unknown used Final buret reading 21.40 mL 39.90 mL 41.05 mL 1.05 mL Initial buret reading 20.05 mL 20.65 mL mL of NaOH used 0.4833 g 0.4714 g 0.4845 g Mass of KHP in unknown Percent of KHP in unknown Average percent of KHP Standard deviation Calculations of percent KHP and standard deviation (show using equations with units):