Question

A solid weighs 277.5 gm in air and 212.5 gm when totally immersed in the liquid of density 0.9 gm/cm^3. Calculate the density of the solid.
Ans:2.05 gm/cm^3
plzzz help meteach the process to solve dis..plzz

Answer 1

Do u know the formula for Density??

Answer 2

ya..it mass per volume!

Answer 3

Then find the volume occupied by solid in that liquid using the formula!!

Answer 4

bt hw?

Answer 5

Then find the density of solid by taking its mass as 227.5 gm. ....as volume of a solid doesnt change(in this case)

Answer 6

Use d=m/v;where m=212.5 gm and d=0.9 gm/cm^3.Get v!1

Answer 7

Substitute this v in d(solid)=mass(solid)/(v)volume(solid)

Answer 8

Gtin it???

Answer 9

yup :)

Answer 10

So can u cntnu??

Answer 11

yup tq :D

Answer 12

Ur Welcome.Cheer!!:)

Answer 13

let V be the volume of the solid
and \(\rho\) be the density of the solid
so buoyant force=weight in air-weight in water
=277.5-212.5=65 gm-wt
now the buoyant force = V*density of liquid
find V from here...
now the density of the solid=m/V

Answer 14

quite late bt tq 4 ur help souvik.. :)

Answer 15

welcome...:)

Answer 16

Is my method wrong souvik??Pls do tell.I dont want sum1 to learn a wrong method!1

Answer 17

the way u find the volume of the solid....dividing the weight by the density of liquid ....i think its wrong..!

Answer 18

@sweta.aryal

Answer 19

Which method gives u the answer??Pls check

Answer 20

@souvik I think neither of our methods give her the answer!!:(

Answer 21

Mine comes to around 1.19,while urs to 3.86

Answer 22

only @sweta.aryal can tell if she wrote the correct answer or not..!!!

Answer 23

True