To prepare standard solution of oxalic acid using chemical balance
Answers
a watch glass, wash it with distilled water and then dry it.
Weigh the clean and dried watch glass accurately and record its weight in the note book.
prepare-250-ml-of-m10-solution-of-oxalic-acid-from-crystalline-oxalic-acid-1
Weigh 3.150 g oxalic acid on the watch glass accurately and record this weight in the note-book.
Transfer gently and carefully the oxalic acid from the watch glass into a clean 250 ml beaker. Wash the watch glass with distilled water with the help of a wash bottle to transfer the particles sticking to it into the beaker [Fig].
The volume of distilled water for this purpose should not be more than 50 ml.
Dissolve oxalic acid crystals in the beaker by gentle stirring with a clean glass rod.
When the oxalic acid in the beaker is completely dissolved, transfer carefully the entire solution from the beaker into a 250 ml measuring flask (volumetric flask) with the help of a funnel [Fig].
prepare-250-ml-of-m10-solution-of-oxalic-acid-from-crystalline-oxalic-acid-2
Wash the beaker with distilled water. Transfer the washings into the measuring flask [Fig].
Finally wash the funnel well with distilled water with the help of a wash bottle to transfer the solution sticking to the funnel into the measuring flask [Fig].