Question

UYURURUle? T S OF Hydrogen gas are in the container if the ratio of hydrogen to oxygen is 2.1 with a pressure of 1.00 atm? 13. 8.500 g grams of Zinc metal are placed into a flask containing 100.0 mL of 3.00 M hydrochloric acid. What volume of hydrogen das can be generated at 1.000 atm and 25.0 "Cif the reaction is allowed to go to completion? 14. 10.000 grams of zinc metal are placed into a flask containing 100.0 mL of 3.00 M hydrochloric acid. What volume of hydrogen das can be generated at 1.000 atm and 20.0 if the reaction is allowed to go to completion? 15. A 3.05 g sample of ammonium nitrate is introduced into an evacuated 2.18 L flask with a Tixed volume and then heated to 250,0 °C. What is the total pressure in the flask at 250.00 after the ammonium nitrate has completely decomposed according to the reaction below? NH4NO3(s) N2O(g) + 2 H2O(g) 16. A container with a fixed volume contains a gas sample with a pressure and temperature of 1.000 atm and 25.5 °C. The temperature is increased to 51.0 °C. Calculate the final pressure inside the container. 17. A cylinder with a movable (weightless, frictionless) piston contains a sample of oxygen gas. The initial volume and temperature of the gas are 1.500 L and 20.0°C respectively. The gas is heated against a fixed pressure until the new volume is 2.500 L. Calculate the final temperature of the gas.

Answer 1

ULI 13. -8.500 8.500 grams of zinc metal in moles 3 sou mol 65.38 " (mw = 65.38 g/mol) = 0.130009177 mol moles of the present = 100 10x10 3 x 3.00 Imol 0.300 mol Zn + 2HCl - (S) Zoclet the (aq) lag) in Limiting reagent is zais). So, moles of H₂ Produced = 3.500 nol 65.38 pressure (P) = 1.000 atm, Temperature (T) = (25 + 273) k = 298 K R = 0.08206 Lata not kn using Pv=nRT 2 = nRT = 65.38X 0.082068298 лет 8:goo 3.179228816 L ~ 3.182