How many moles of mgcl2 are there in 323 g of the compound?

A mole is defined as the mass of substance containing the same number of fundamental units as the are atoms in carbon 12. The equation of finding the mole is , where n is number of moles, m is mass of and M is the relative formula mass of

The formula mass of is 95.11 g/mol

So .

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3