Question

"Prepare 500 mL of a 0.1 M sodium hydroxide solution by dilution of a 1 M sodium hydroxide stock reagent or from solid NaOH. This dilution need only be performed to 5% accuracy, that is, using a graduated cylinder and an Erlenmeyer flask."

1. Explain why it is not necessary and even not desirable to perform the preparation of 1 M sodium hydroxide operation with higher accuracy.

"Add the analyte to the beaker and fill with distilled deionized water to the 50 mL mark."

2. the exact amount of water is not critical, why? discuss the considerations in the choice of the total volume of the analyte solution used in the titration.

Answer 1

O Naomis ia secondary standand solutim. Anyhow we have to standardese this Naot solution by any primary standand solution by tilnehin bar After tilnction de concerination we will calculate that will be the actual molenity this NaOH solution & Similar way I you add less Water (eg. if you need to me suppon you love added 49 me) it does nof matter. As with this less amount of water What may be the molenity of the NaOH solution that value I we we can easily con each pet by fifaction with get by hits a os primena tandend settimo