Mention the precautions to be taken in the experiment of sodium carbonate
treated with hydrochloric acid.
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Precautions to be taken in the experiment of sodium carbonate and hydrochloric acid are :
1. While weighing do not spill the substance on balance pan.
2. Rotate the knob of balance gently.
3. Keep the weights in weights box at proper places after weighing
4. Wash the watch glass carefully so that even a single crystal is not left on the watch glass.
5. Bring the watch glass close to funnel while transferring weighed substance and transfer it gently. Wash it repeatedly with distilled water.
6. Wash the burette with water after titration is over.
7. Last few drops should be added using pipette to avoid extra addition of distilled water above the mark on the neck of the measuring cylinder.
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