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John just started his job as lab assistant at Dr. Vogel's lab. He received a set of p1000, p200, and p20 pipets from lab manager Alex. John, being a very responsible researcher, tested his p1000 by pipeting 1ml of water onto a balance for 3 times. Below is a summary of his result. 1st time: 850 mg 2nd time: 849 mg 3rd time: 851mg What do you think John should ask Alex to do with his p1000? And why?

John just started his job as lab assistant at Dr. Vogel's lab. He received a set of p1000, p200, and p20 pipets from lab manager Alex. John, being a very responsible researcher, tested his p1000 by pipeting 1ml of water onto a balance for 3 times. Below is a summary of his result. 1st time: 850 mg 2nd time: 849 mg 3rd time: 851mg What do you think John should ask Alex to do with his p1000? And why?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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John just started his job as lab assistant at Dr. Vogel's lab. He received a set of p1000, p200, and p20 pipets from lab manager Alex. John, being a very responsible researcher, tested his p1000 by pipeting 1ml of water onto a balance for 3 times. Below is a summary of his result. 1st time: 850 mg 2nd time: 849 mg 3rd time: 851mg What do you think John should ask Alex to do with his p1000? And why?
Transcribed Image Text:John just started his job as lab assistant at Dr. Vogel's lab. He received a set of p1000, p200, and p20 pipets from lab manager Alex. John, being a very responsible researcher, tested his p1000 by pipeting 1ml of water onto a balance for 3 times. Below is a summary of his result. 1st time: 850 mg 2nd time: 849 mg 3rd time: 851mg What do you think John should ask Alex to do with his p1000? And why?
Expert Solution
Step 1

Given:

In Trial-1: mass of water = 850 mg

In Trial-2: mass of water = 849 mg

In Trial-3: mass of water = 851 mg

 

Let us assume the density of water be "1.0 g/mL"

mass of 1 mL of water = 1.0 g = 1000 mg

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