Asked by Sara

How to prepare 250.0 mL of 0.076M NaOH?

Answers

Answered by bobpursley
from what? Solid NaOH, from a known stock solution?

Assuming solid NaOH pellets.

determine the mass needed
mass=.250*.076*40 (40 is the formula mass of NaOH)

accurately measure the mass needed.
put 240 ml of distilled H20 in an Erlenmeyer flask, add the solid NaOH.
Put the flask on a stirrer, or hand stir with a glass tube. When disolved, add water to come up to 250 ml.
pour into a storage jar, label, and store properly (away from acids).

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