5.74 g of a substance occupies 1.2 cm 3. Its density by keeping the significant figures in view is

Question

5.74 g of a substance occupies 1.2 cm 3. Its density by keeping the significant figures in view is (A) 4.8 g cm -3 (B) 4.78 g cm -3 (C) 4.783 g cm -3 (D) 5 g cm -3

Tardigrade Admin · Accepted Answer

The mass 5.74 gm has 3 significant figures, whereas the volume 1.2 cm3 has 2 significant figures. The least number of significant figures here is 2, hence density will be expressed in answer rounded off to two significant figures.

Q. $5.74 g$ of a substance occupies $1.2 c m^{3}$ . Its density by keeping the significant figures in view is

$4.8 g c m^{- 3}$

$4.78 g c m^{- 3}$

$4.783 g c m^{- 3}$

$5 g c m^{- 3}$

The mass $5.74 g m$ has $3$ significant figures, whereas the volume $1.2 c m^{3}$ has $2$ significant figures. The least number of significant figures here is $2,$ hence density will be expressed in answer rounded off to two significant figures.

Q. 5.74g of a substance occupies 1.2cm3. Its density by keeping the significant figures in view is

4.8gcm−3

4.78gcm−3

4.783gcm−3

5gcm−3