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. Determine which of the following density values has the correct number of significant figures.
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10 g/cm3 |
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11 g/cm3 |
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11.1 g/cm3 |
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11.12 g/cm3 |
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11.124 g/cm3 |
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11.1236 g/cm3 |
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11.12356 g/cm3 |
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