Question

a teacher performing a demonstration finds that a piece of cork displaces 23.5 mL of water. the piece of cork has a mass of 5.7g. what is the density of the cork?

Answer 1

D = M/V.... it can be thought of as
D = ♡ with a line through it
............
D = .0057 kg / .0235 L
= .2425531915 kg/L
= .24 kg/L

Answer 2

Explanation:

It is given that,

Mass of piece of cork, m = 5.7 g

Water displaced by the piece of cork, volume of the bar, $V=23.5\ mL=23.5\ cm^3$

We need to find the density of the platinum bar. The density of any substance is given by :

$d=\dfrac{m}{V}$

$d=\dfrac{5.7\ g}{23.5\ cm^3}$

$d=0.242\ g/cm^3$

So, the density of the platinum bar $0.242\ g/cm^3$. Hence, this is the required solution.