1) 0.210 mol of O, gas is measured to have a pressure of.85 atm at a temperature of 295K. Calculate the volume in liters that the O2 gas will occupy.

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.