The mass of a piece of paper is $0.02 g$ and the mass of a social substance and the piece of paper is $20.036 g$ . The volume of the solid substance is $2.16 c m^{3}$ . Calculate the density of the substance.

9.98

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7.36

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7.14

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9.268

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Solution

The correct option is D $9.268$
Mass of piece of paper $= 0.02 g$

Mass of solid substance and piece of paper $= 20.036 g$

$∴$ Mass of solid substance $= 20.036 g - 0.02 g$

$\approx 20.02 g$

Volume of solid $= 2.16 c m^{3}$

Density = $\frac{M a s s}{V o l u m e} = \frac{20.02}{2.16} = 9.268 g / c m^{3}$

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The mass of a piece of paper is 0.02g and the mass of a social substance and the piece of paper is 20.036g. The volume of the solid substance is 2.16cm3. Calculate the density of the substance.

The correct option is D 9.268Mass of piece of paper =0.02gMass of solid substance and piece of paper =20.036g∴ Mass of solid substance =20.036g−0.02g≈20.02gVolume of solid =2.16cm3Density = MassVolume=20.022.16=9.268 g/cm3

The mass of a piece of paper is $0.02 g$ and the mass of a social substance and the piece of paper is $20.036 g$ . The volume of the solid substance is $2.16 c m^{3}$ . Calculate the density of the substance.