Lead has a density of 11.4 grams per mL. If I make a statue out of 3.78 grams of lead, what is the statues volume

0.332mL

Explanation:

11.4g/mL is 11.4 for every one mL

11.4g / 1mL needs to be the same ratio as 3.78g to an unknown value, let's call it x.

11.4g/1mL = 3.78g/x

We cross multiply: 1*3.78 = 11.4*x

3.78 = 11.4x

Now isolate x by diving 11.4 on both sides: 0.331578974mL = x

In chemistry, we usually round to significant figures, so our answer would be 0.332mL

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