2Cu(NO3 )2 - 2CuO + 4NO2 + O2 : If 1.80 go of copper nitrate is heated and the gases collected at a temperature of 22 celcius and 105 kPa, what volume (in dm3) of oxygen is collected? What is the total volume of gas collected in cm3 ?

Question

2Cu(NO3 )2 -> 2CuO + 4NO2 + O2 : If 1.80 go of copper nitrate is heated and the gases collected at a temperature of 22 celcius and 105 kPa, what volume (in dm3) of oxygen is collected? What is the total volume of gas collected in cm3 ?

anonymous · Answer

calculate number of moles of copper nitrate and relate the stoichiometric coefficients of O2 and Cu(NO3)2 and calculate number of moles of oxygen produced from there..
From Ideal gas equation calculate the volume.. :D
V = nRT/P (remember T is in Kelvin)
n = number of moles of oxygen
R = Universal Gas constant
similarly you can do second part :D.. Cheers !