3. A student is using a 10 mL volumetric pipet to dispense water and wants to test how accurate the volume is by weighing the water dispensed from the pipet. First, they measure the mass of a beaker to be 30.045 ± 0.005 g. They then collect 10 mL of water into the volumetric pipet and dispense the water into the beaker. The mass of the beaker plus the water is 40.081 ± 0.005 g. Calculate the mass of the water added to the beaker and use propagation of error to calculate the uncertainty of the mass. Report the mass of the water with the uncertainty with appropriate significant figures.
3. A student is using a 10 mL volumetric pipet to dispense water and wants to test how accurate the volume is by weighing the water dispensed from the pipet. First, they measure the mass of a beaker to be 30.045 ± 0.005 g. They then collect 10 mL of water into the volumetric pipet and dispense the water into the beaker. The mass of the beaker plus the water is 40.081 ± 0.005 g. Calculate the mass of the water added to the beaker and use propagation of error to calculate the uncertainty of the mass. Report the mass of the water with the uncertainty with appropriate significant figures.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter2: Chemical Compounds
Section: Chapter Questions
Problem 105QRT
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I need help with this problem. You can use excel to do the problem. All the screen shots of the work are appreciated.
Transcribed Image Text:3. A student is using a 10 mL volumetric pipet to dispense water and wants to test how accurate
the volume is by weighing the water dispensed from the pipet. First, they measure the mass of a
beaker to be 30.045 ± 0.005 g. They then collect 10 mL of water into the volumetric pipet and
dispense the water into the beaker. The mass of the beaker plus the water is 40.081 ± 0.005 g.
Calculate the mass of the water added to the beaker and use propagation of error to calculate
the uncertainty of the mass. Report the mass of the water with the uncertainty with appropriate
significant figures.
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