Be sure to answer all parts. Enter your answer in scientific notation. A gas-filled balloon having a volume of 2.90 L at 1.20 atm and 16°C is allowed to rise to the stratosphere (about 30 km above the surface of the Earth), where the temperature and pressure are -45 °C and 7.10 x 103 atm, respectively. Calculate the final volume of the balloon. x 10

The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine 1580 L of nitrogen gas and 4240 L of hydrogen gas at STP, heat the mixture to run the reaction, then separate the ammonia from the reaction mixture. What volume of reactant, measured at STP, is left over? Assume the reaction goes to completion. N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)

Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres. Be sure your answer has the correct number of significant digits.

2. Sodium sulfide (0,1159 g) and excess hydrochloric acid were reacted together to form 35.75 mL of an unknown gas. The gas was collected over water when the atmospheric pressure was measured to be 767 mmHg. The temperature of the water was 23.0°C. Determine the molar mass, as well as identity, of the gas. Hint: You will need to reference your textbook for the vapor pressure of water.

A reaction between liquid reactants takes place at  −17.0°C  in a sealed, evacuated vessel with a measured volume of  35.0L . Measurements show that the reaction produced  39.g  of dinitrogen difluoride gas. Calculate the pressure of dinitrogen difluoride gas in the reaction vessel after the reaction. You may ignore the volume of the liquid reactants. Be sure your answer has the correct number of significant digits. pressure: atm

A quantity of helium gas is originally held under a pressure of 145 kPa at 18°C. If the volume of the container is tripled, and the temperature is increased to 30°C, what is the resulting pressure in kPa? (Hint, can you make up a volume?) H 322181 Li Na Mg Rb Be Sr Cs Ba Fr 22 Ca Sc Ti Ra Raden Lat 94.5 kPa 46.4 kPa 378.3 kPa 453.9 kPa 50.3 kPa MD 45 83-103 482.2 kPa Zr Hf Atvice Ac Th Series 23 VO Vieta VID 24 2 Ta W Tete 104 105 Rf Db Sg Cr Mn Periodic Table of the Elements VID 75 41. 34445 Nb Mo Tc Ru Rh Pd Ag Cd Abaline Tra Saber 26 27 28 29 30 Fe Co Ni Cu Zn Re Os Symbol S 13 13 FIA B Nawww Al Ga Halagan In La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho D IVA 70 Pt Au Hg Tl Pb B Mar 102108, 109 114 Bh Hs Mt Ds Rg Cn Uut "FI 590 U Np Pu Am Cm Bk Cf Es Sn Sb 14 15 16 17 18 Si CI Ar La 16 3514. Ge As Se Br Kr By 17 VIA 18 VELA He Hek 4000 Ne 62 63 64 SA Te I Xe 16 At Rn Fate Bi Po Uup "Lv Uus Uuo Er Tm Yb Lu C Henan 100 100 Fm Md No L

A sample of methane gas collected at a pressure of 438 mm Hg and a temperature of 292 K has a mass of 11.2 grams. The volume of the sample is____L.

According to Dalton, the pressure exerted by a gas inside a container is proportional to the number of molecules of that gas.  If 4.00 x 1023 molecules of N2 and 2.00 x 1023 molecules of O2 are mixed in a container they exert a total pressure of 1686 torr.  What portion of that pressure (in torr units) is exerted by the N2?  Report answer to four significant figures in decimal notation. _____________________ torr,   What portion of that pressure (in torr units) is exerted by the O2?  Report answer to four significant figures in decimal notation. ____________________ torr

A balloon at 30.0 °C has a volume of 222 mL. If the temperature is increased to 63.1 °C and the pressure remains constant, what will the new volume be, in ml?