Platinum has a density of 21.40 g/c m cubed. What is the mass of 0.0059 L of this metal in kg?

Answer 1

First, we need to convert 0.0059 L to cm^3:

1 L = 1000 cm^3
0.0059 L = 5.9 cm^3

Now we can use the density formula:

density = mass/volume

Rearranging the formula gives:

mass = density x volume

Substituting the given values:

mass = 21.40 g/cm^3 x 5.9 cm^3

mass = 126.26 g

Finally, we convert the mass to kg:

mass = 0.12626 kg (to five significant figures)