Question

to accurately and precisely prepare the solution, the solid calcium nitrate should be added to a 250.0 ml ______. select the single best answer.
○ volumetric flask
○ graduated cylinder
○ beaker
○ erlenmeyer flask

Explanation:

To accurately and precisely prepare a fixed-volume solution (250.0 mL), the solid is first dissolved in a beaker, then transferred to a volumetric flask. However, the question asks where the solid is initially added for precise preparation: a beaker is used to dissolve the solid first before transferring to the volumetric flask, while volumetric flasks are for final volume adjustment, not initial solid addition. Graduated cylinders measure volume, not hold solid for solution prep, and Erlenmeyer flasks are for mixing/storage, not precise solution setup.

Answer:

beaker