Topic/Experiment: Topic/Experiment: Preparing Standard Standard Solution
Aim: To To prepare prepare a standard solution solution of sodium hydro hydroxide xide which has concentration of 1.0 mol dm- and then ma!e a "a#$ solution with 0.1 mol dm- %y using dilution method. Apparatus:
Procedures: ,Preparing standard solutions. 1. etermine the amount amount of "a#$ "a#$ used to prepare prepare the the standard standard solution. . &eight the "a#$ "a#$ needed %y using weighting weighting %ottle %ottle and electronic electronic %alance. . The solid is is carefully carefully tipped into a %ea!er %ea!er containing distilled water. water. . fter fter dissol(i dissol(ing ng the solid' solid' transfer transfer it into into a 100cm (olumetric )as!. 2. 3y using dropper dropper'' the )as! is then then *lled to the mar! mar! with distilled distilled water. 4. The )as! is then sha!en sha!en to mix the solution thoroughly thoroughly..
,3Preparing a solution %y dilution. 1. 5sing 5sing the formu formula la 6171 8 67' calculate the amount of 1.0 mol dm- "a#$ needed to prepare the dilute "a#$ solution. . Pippe Pippete te the the 1.0 1.0 mol mol dm dm- "a#$ into a (olumetric )as!. . 3y using dropper dropper'' the )as! is then then *lled to the mar! mar! with distilled distilled water. . The )as! is then sha!en sha!en to mix the solution thoroughly thoroughly..
