Question

A sample has a mass of 0.04 g and a volume of 143 mL. Is it most likely to be a ___________?

Answer 1

Answer-

b) liquid

..........

Answer 2

A sample has a mass of 0.04g and a volume of 143 ml. is it most likely to be a ....

1. a solid
2. a liquid
3. gas
4. none of the above
5. all of the above

solution : let see density of the sample

density = mass of the sample/volume of the sample

= 0.04g/143ml

= (0.04/143) g/ml

= 0.000279 g/cm³ [ as 1 ml = 1 cm³ ]

here you see density of the sample is very low compare to liquid gasoline (0.7 g/cm³ , it is one of the lowest dense liquid ).

we know, only gas has lower density than liquid.

Therefore the sample must be a gas. i.e., option (2) a liquid, is correct.