When the fuel mixture contained in a 1.57 L tank, stored at 750 mmHg and 298 K, undergoes complete combustion, how much heat is emitted

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

What is the mass of 0.46 mil of mgcl2