, 22.06.2019 21:10 jacamron

# An atmospheric scientist decides to study the reaction between nitrogen dioxide and oxygen that produces dinitrogen pentoxide. he fills a stainless steel reaction chamber with of nitrogen dioxide gas and of oxygen gas and raises the temperature considerably. at equilibrium he measures the mole fraction of dinitrogen pentoxide to be . calculate the pressure equilibrium constant for the equilibrium between nitrogen dioxide, oxygen, and dinitrogen pentoxide at the final temperature of the mixture.

the answer is b & c i believe : )

a. formation of precipitation

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

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