What is the mass of a sample of material that has a volume of 55.10 cm^3 and a density of 6.720 g/cm^3?

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

volume = 55.10 cm³

Density = 6.720 g/cm³

The mass is

mass = 55.10 × 6.720 = 370.272

We have the final answer as

Hope this helps you

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8