Question

What is the volume in milliliters, of a sample of helium that has a mass of 1.73 x 10^-3g given that the density is 0.178 47g/L

Answer 1

Given :

Mass of helium sample ,
`m=1.73* 10^(-3)\ g` .

Density of helium ,
`\rho=0.178* 10^(-3) \ g/cm^3` .

To Find :

The volume in millilitres .

Solution :

Density is given by ,
`\rho=(m)/(V)`

So , volume is ,
`V=(m)/(\rho)`

Putting given values in above equation we get :

`V=(1.73* 10^(-3))/(0.178* 10^(-3))\ ml\\\\V=9.72\ ml`

Therefore , volume of sample of helium is 9.72 ml .

Hence , this is the required solution .