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To determine the volume of a sphere, you measure its diameter using a ruler an obtain a value of 15.2 mm for the diameter. Using this diameter, you convert the diameter to units of centimeters  by dividing the radius by 10 mm/cm and then you divide the diameter by 2 to obtain the radius (r). You then use the equation V = 4/3πr3 to obtain the volume of the sphere. To determine the mass, you measure the mass on a balance and obtain a mass of 20.4538 g. You then calculate the density by dividing the mass by the volume

To determine the volume of a sphere, you measure its diameter using a ruler an obtain a value of 15.2 mm for the diameter. Using this diameter, you convert the diameter to units of centimeters  by dividing the radius by 10 mm/cm and then you divide the diameter by 2 to obtain the radius (r). You then use the equation V = 4/3πr3 to obtain the volume of the sphere. To determine the mass, you measure the mass on a balance and obtain a mass of 20.4538 g. You then calculate the density by dividing the mass by the volume

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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To determine the volume of a sphere, you measure its diameter using a ruler an obtain a value of 15.2 mm for the diameter. Using this diameter, you convert the diameter to units of centimeters  by dividing the radius by 10 mm/cm and then you divide the diameter by 2 to obtain the radius (r). You then use the equation V = 4/3πr3 to obtain the volume of the sphere. To determine the mass, you measure the mass on a balance and obtain a mass of 20.4538 g. You then calculate the density by dividing the mass by the volume. Determine which of the following density values has the correct number of significant figures.

   

10 g/cm3
   

11 g/cm3
   

11.1 g/cm3
   

11.12 g/cm3
   

11.124 g/cm3
   

11.1236 g/cm3
   

11.12356 g/cm3
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