How many moles of bromine gas would occupy a volume of 20 L at a pressure of .90 atm and a temperature of 90 degrees Celsius? Remember 1 atm=101.3 kPa

the answer is the first option

explanation:

just googled it m8. not that hard

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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