How many moles of water are 2.41x10^24 molecules of water?

4 moles of water

We are given;

Molecules of water as 2.41x10^24 molecules

To get the number of moles we divide the number of molecules with the Avogadro's constant.

Number of moles of water = (2.41x10^24 molecules)÷(6.022×10^23)

Therefore, 2.41x10^24 molecules of water are equal to 4 moles of water.

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