Volumetric pipets come in a variety of sizes typically ranging from 0.5 mL to 20
ID: 1050940 • Letter: V
Question
Volumetric pipets come in a variety of sizes typically ranging from 0.5 mL to 200.0 mL. Select the following instances in which a volumetric pipet would be the best choice of glassware. To create a 200.0 mL of a 0.10 M H_2CO_3 solution from a 6 M solution of H_2CO_3. To add about 20 mL of a concentrated KOH solution to a beaker. To titrate a flask containing indicator and H_2SO_4 with 0.1 M NaOH. To prepare a set of diluted HCI solutions requiring volumes of exactly 1.0, 5.0, and 10.0 mL. Based on the choices you selected above, why would a volumetric pipet be used? A volumetric pipet would precisely deliver the proper amount of solution. A volumetric pipet is available in those sizes. A volumetric pipet is the fastest way to accomplish the tasks. Why would a volumetric pipet not be used in the other situations? The amount doesn't need to be as precise as what a volumetric pipet would give. There are other pieces of glassware better suited for these tasks. The chemicals are too dangerous to use with just a volumetric pipet.Explanation / Answer
1) Volumetric pipette is used to
add 20 ml of concetrated KOH to beaker
2) A volumetric pipette precisely delivers proper amount of solution. Hence it is used
3) Pipette is not used in other situations because
Chemicals are too dangerous to use with volumetric pipette
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.