A 2-16 g of a substance occupies 1-5 cm3- Its density to appropriate significant figure is-

Step 1 : Given data Mass of substance = 2.16gVolume = 1.5cm^3Step 2 : Formula used Density = mass/volumeStep 2: Evaluating density Putting values in above form ...

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Standard VII

Physics

Density

A 2.16 g of a...

Question

A 2.16 g of a substance occupies 1.5 cm³. Its density to appropriate significant figure is:

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Solution

Step 1 : Given data
Mass of substance = $2.16 g$
Volume = $1.5 c m^{3}$
Step 2 : Formula used
Density = $\frac{m a s s}{v o l u m e}$
Step 2: Evaluating density
Putting values in above formula , density = $\frac{2.16}{1.5}$
$= 1.44 g / c m^{3}$
Since There are $3$ significant figures in measured mass
Whereas there are only $2$ significant figures in measured volume.
Hence density should be expressed to only $2$ significant figures i.e $1.4 g / c m^{3}$

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A 2.16 g of a substance occupies 1.5 cm3. Its density to appropriate significant figure is:

A 2.16 g of a substance occupies 1.5 cm³. Its density to appropriate significant figure is: