Preparing Oxalic Acid Solution Quiz

3 Questions

Oxalic acid should be transferred softly and carefully from the watch glass into a clean and dry measuring flask using a funnel.

The weight of oxalic acid that should be weighed on the watch glass is 3.15 g.

The stopper should be put on the mouth of the measuring flask and the solution should be shaken softly to make the entire solution uniform.

Study Notes

Take a watch glass, wash it with distilled water and dry it.
Weigh the exact amount of clean and dried watch glass and record its weight in the notebook.
Weigh correctly on the watch glass 3.15 g of oxalic acid and record this weight in the notebook.
Using a funnel, transfer oxalic acid softly and carefully from the watch glass into a clean and dry measuring flask.
Wash the watch glass with distilled water to move the particles that stick to it into the foam with the assistance of a wash bottle.
For this purpose, the volume of distilled water should not exceed 50 ml.
Wash funnels several times with distilled water to move the sticking particles into the measuring flask using a wash bottle. Add water in tiny quantities while washing the funnel.
Turn the flask of measurement until the oxalic acid dissolves.
Add the last few mL of distilled water drop into the measuring flask until the reduced meniscus level just touches the mark.
Put the stopper on the mouth of the flask and shake softly to make the entire solution uniform.

The oxalic acid solution has a Molarity of 10 and a weight of 3.15 g.

3 Questions