In an experiment, 0.46 mol H2(g) and 0.46 mol Br2(g) are mixed in a 1.00 L container at 500.0 K and the reaction forms HBr(g). What is the equilibrium concentration of HBr

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.