There are 207405.111 grams in that many pounds.
Nuclear energy comes from splitting of Barium atom to form Krypton atom
Agitation, or stirring of the solute in the solvent increases the solubility of the solution
Don't really know if this is what your asking but P1/T1= P2/T2 should show how the pressure varies with temperature (V is left out because it's constant since the gas is trapped in an aerosol can). As the temperature rises the pressure rises and if it gets too high then the can explodes, which is why it should be stored in a cool place. There's also PV=nRT might be kind of hard to find moles (n) though.