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A student uses a 100.00 mL volumetric flask to determine the density of a sample of water.  The mass of the dry empty flask is determined to be 80.354 g.  The flask is filled to the line 5 times with the water sample and the mass of the flask and the water is determined each time giving the 5 masses below.  measurement 1:  172.275 g measurement 2: 172.288 g measurement 3: 172.28 g measurement 4: 172.263 g measurement 5: 172.378 g Based on the data given above, what is the average density of the sample in g/mL based on those measurements?

A student uses a 100.00 mL volumetric flask to determine the density of a sample of water.  The mass of the dry empty flask is determined to be 80.354 g.  The flask is filled to the line 5 times with the water sample and the mass of the flask and the water is determined each time giving the 5 masses below.  measurement 1:  172.275 g measurement 2: 172.288 g measurement 3: 172.28 g measurement 4: 172.263 g measurement 5: 172.378 g Based on the data given above, what is the average density of the sample in g/mL based on those measurements?

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
ChapterA: Scientific Notation And Experimental Error
Section: Chapter Questions
Problem 10P
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A student uses a 100.00 mL volumetric flask to determine the density of a sample of water.  The mass of the dry empty flask is determined to be 80.354 g.  The flask is filled to the line 5 times with the water sample and the mass of the flask and the water is determined each time giving the 5 masses below. 

measurement 1:  172.275 g

measurement 2: 172.288 g

measurement 3: 172.28 g

measurement 4: 172.263 g

measurement 5: 172.378 g

Based on the data given above, what is the average density of the sample in g/mL based on those measurements?  Enter your answer with 3 significant figures.

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