Directions: For parts of the free-response question that require calculations, clearly show the method used and the steps involved in arriving at your answers. You must show your work to receive credit for your answer. Examples and equations may be included in your answers where appropriate While investigating the chemical and physical properties of metallic element E, a student conducts an experiment by combining E() and HBr (ag), which react according to the following equation 2 E(s) + 2 HBr (aq) + 2 EBr(aq) +H; (g) As shown in the following diagram, 10.00 mL samples of HBr (ag) are added to different quantities of E(s) in a closed test tube. At the start of each trial, the gas-collecting tube is filled completely with distilled water. The samples of E(s) react with HBr (aq), and the H, (2) produced is collected in the gas-collecting tube INNNND 34 Metal E HBr 35 (C) The enlarged view of the gas-collecting tube at the end of trial 3 is shown in the diagram above. What should the student record as the volume, in ml, of H, (9) collected in trial 3? (d) In the laboratory, the temperature is 295 K and the total pressure in the gas-collecting tube is 748.6 mmHg. If the vapor pressure of water at 295 K is 19.8 mmHg. determine the pressure of the H, (g) in the gas-collecting tube