165. An object of mass 4.237 g occupies a volume 1.72 cm³. The density of the object to appropriate significant figures is
i) 2.46 g cm^-3
ii) 2.463 g cm^-3
iii) 2.5 g cm^-3
iv) 2.50 g cm^-3

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Solution

Dear student,

The answer to a multiplication or division is rounded off to the same number of significant figures as possessed by the least precise term used in the calculation. The final result should retain as many significant figures as are there in the original number with the least significant figures. In the given question, density should be reported to three significant figures .

density = 2.237/1.72 = 2.4633 After rounding off density = 2.46 g cm^-3

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165. An object of mass 4.237 g occupies a volume 1.72 cm3. The density of the object to appropriate significant figures is i) 2.46 g cm-3 ii) 2.463 g cm-3 iii) 2.5 g cm-3 iv) 2.50 g cm-3

165. An object of mass 4.237 g occupies a volume 1.72 cm³. The density of the object to appropriate significant figures is
i) 2.46 g cm^-3
ii) 2.463 g cm^-3
iii) 2.5 g cm^-3
iv) 2.50 g cm^-3