Platinum has a density of 21.40 g/cm3. What is the mass of 0.0059 L of this metal in kg?



126.26 kg

126.3 kg

0.12626 kg

0.13 kg

1 answer

The answer is 0.12626 kg.

To solve the problem, we need to use the formula:

mass = density x volume

We are given the density of platinum as 21.40 g/cm3 and the volume as 0.0059 L. However, we need to convert the volume from L to cm3 to match the units of density.

1 L = 1000 cm3

So, 0.0059 L = 5.9 cm3

Now we can substitute the values into the formula:

mass = 21.40 g/cm3 x 5.9 cm3
mass = 126.26 g
mass = 0.12626 kg (since 1 kg = 1000 g)

Therefore, the mass of 0.0059 L of platinum is 0.12626 kg.