Question

Example 5. The mass of an empty graduated
cylinder is 22.4 g. When it is filled with 30 mL
of a liquid, its mass becomes 44.8 g. Find the
density of the liquid
1
$in \: physivs$
​

Answer 1

Explanation:

Volume of liquid is

9.40 mL

To determine mass, subtract the mass of the empty cylinder from the mass of the cylinder plus liquid.

47.99 g

−

34.90 g

=

13.09 g

The mass of the liquid is

13.09 g

.

Density is mass per unit volume. The equation for density is

density

=

mass

volume

In this question, volume is measured in milliliters, mL

,

and mass is measured in grams, g.

Substitute your known values into the density equation and solve.

density

=

13.09

g

9.40

mL

=

1.39 g/mL

rounded to three significant figures

Answer 2

Answer:

0.747g/cm^3

Explanation: