(725mL) of air per stroke Fitted with a valve to release vacuum without disconnecting the pump Pressure gauge reads in both centimeters and inches of mercury
2 x 25ml acetic acid, 2 x 25ml n-butyric acid, 1 x 25ml n-butyl alcohol, 1 x 25ml octyl alcohol, 1 x 25ml methyl alcohol, 1 x 25ml ethyl alcohol, 1 x 25ml concentrated sulfuric acid, glass droppers, teacher's guide and student study guide copymasters