Question

Pumice is a volcanic rock that contains many trapped air bubbles. A 225- gram sample is occupied 236.6ml.
a. What is the density of pumice (answer is 0.951g/ml)

Answer 1

to find:

density of the pumice.

solution:

density= mass/ volume (d= m/v)

= 225/236.6

= 0.951g/ml

so, the density of pumice is 0.951g/ml.

Answer 2

${\boxed{{ formula :}}}$

$→\bold{Density = \frac{mass}{volume} }$

${\boxed{{ Given :}}}$

$→\bold{Mass = 225 g }$

$→\bold{ Volume = 236.6 ml}$

${\boxed{{ Solution :}}}$

$→\bold{Density = \frac{mass}{volume} }$

$→\bold{ Density = \cancel{ \frac{225 g}{236.6 ml}} = 0.951 g/ml}$

The density of pumice is 0.951 g/ ml .