When using a volumetric flask, which of the following are true? (Select all that

Question

When using a volumetric flask, which of the following are true? (Select all that apply.)

If any solute is lost in transfer, the concentration of the resulting solution will be lower than the calculated value.

If a volumetric flask is over-filled so that the bottom of the meniscus is above the etched calibration mark, the concentration of the resulting solution will be lower than the calculated value.

If a volumetric flask is filled so that the top of the meniscus is level with the etched calibration mark, the concentration of the resulting solution will be higher than the calculated value.

If the solid is added to a volumetric flask after filling it with solvent, the concentration of the resulting solution will be lower than the calculated value.

If the solid is added to a volumetric flask after filling it with solvent, the concentration of the resulting solution will be higher than the calculated value.

If any solute is lost in transfer, the concentration of the resulting solution will be higher than the calculated value.

If a volumetric flask is over-filled so that the bottom of the meniscus is above the etched calibration mark, the concentration of the resulting solution will be higher than the calculated value.

If a volumetric flask is filled so that the top of the meniscus is level with the etched calibration mark, the concentration of the resulting solution will be lower than the calculated value.

Explanation / Answer

Solution :-

When using a volumetric flask, which of the following are true? (Select all that apply.)

True = If any solute is lost in transfer, the concentration of the resulting solution will be lower than the calculated value.

True =If a volumetric flask is over-filled so that the bottom of the meniscus is above the etched calibration mark, the concentration of the resulting solution will be lower than the calculated value.

True =If a volumetric flask is filled so that the top of the meniscus is level with the etched calibration mark, the concentration of the resulting solution will be higher than the calculated value.

True=If the solid is added to a volumetric flask after filling it with solvent, the concentration of the resulting solution will be lower than the calculated value.

False=If the solid is added to a volumetric flask after filling it with solvent, the concentration of the resulting solution will be higher than the calculated value.

False=If any solute is lost in transfer, the concentration of the resulting solution will be higher than the calculated value.

False=If a volumetric flask is over-filled so that the bottom of the meniscus is above the etched calibration mark, the concentration of the resulting solution will be higher than the calculated value.

False=If a volumetric flask is filled so that the top of the meniscus is level with the etched calibration mark, the concentration of the resulting solution will be lower than the calculated value.

Because the volume of the solution must be exact to get the desired concentration for the solution. Also if any solute is loss during the transfer then it will decreases the moles of the solute which will result in the lower concentration of the solution than calculated. Meniscus of the water level should be correct to get the correct concentration solution.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.