Explain whether the rinsing of conical flask with the standard sodium carbonate would lead to experimental error?

Answer 1

It depends on the nature of the chemical going into the conical flask.

If you are titrating for carbonate or sodium ions there could be an error.

Whatever, the product going into the flask, first flush it with a little of that product. Throw it away and then titrate.

However, it they have been cleaned in a lab washing machine,, by a lab. technician, then the conical flask should be 'whistle' clean. L:ab. technicians use a special water soluble of pH 7 cleaner.

Answer 2

Rinsing a conical flask with the standard sodium carbonate solution could potentially introduce a systematic error if there was any residue or impurities left in the flask from previous experiments. This could impact the accuracy of the results if any of the residue or impurities interact with the solution being measured. It is best practice to ensure that the flask is thoroughly cleaned and rinsed with the appropriate solvent to avoid such errors.

Answer 3

This would lead to experimental error unless the reaction is not affected by sodium or carbonate ions. Safest to just use distilled water.