Question

Determine the volume displaced and then calculate the density of this 54 g sample of brass.

Answer 1

To determine the volume displaced by the 54 g sample of brass, use the water displacement method and calculate the density by dividing the mass by the volume.

Step-by-step explanation:

To determine the volume displaced by the 54 g sample of brass, you need to use the water displacement method. Submerge the brass sample in water and measure the volume of water displaced. The volume of water displaced will be equal to the volume of the brass sample. Then, to calculate the density of the brass sample, divide the mass of the sample (54 g) by the volume of the sample.

For example, if the volume of water displaced is 30 mL, then the volume of the brass sample is also 30 mL. The density of the brass sample would be calculated as 54 g/30 mL = 1.8 g/mL.

Answer 2

DETAILS IN THE QUESTION INSUFFICIENT TO ANSWER

Step-by-step explanation:

Assuming the liquid to be water ,

the density
`d_(w)` of water is :
`1000kgm^(-3)=1gcm^(-3)`

Buoyant force exerted by a liquid on an object with
`V_(imm)` of it's volume immersed is :

`F_(B)=V_(imm)*d_(l)*g`

where ,

• 
  `F_(B)` is the buoyant force
• 
  `d_(l)` is the density of the liquid
• 
  `g` is the acceleration due to gravity

Thus at equilibrium:

`m_(brass)*g=V_(imm)*d_(l)*g\\m_(brass)=V_(imm)*d_(l)\\54=V_(imm)*1\\V_(imm)=54cm^(3)`

from these , we get the density of brass to be
`1gcm^(-3)`

which is not possible