Asample of a gas contains 0.26 moles of oxygen gas and 0.81 moles of nitrogen gas. the gas sample is in a 3.90 liter container. what is the total pressure of the gas?

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