thread starter triman14 Apr 07 2010
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 | Does anyone know how to do any of these problems? >__> These are actually the easy ones, cuz they give you like 4 tries to put in your answer. I already gave up on the short answers. >__> What is the pressure inside a system when the system-side column in an open mercury manometer is 75.0 mm lower than the atmo- sphere side when the atmospheric pressure is 735 mm Hg? 1. 10.0 kPa 2. 820 kPa 3. 108 kPa 4. 88.0 kPa 5. 75 kPa Consider 2Al + 6HCl ! 2AlCl3 + 3H2 , the reaction of Al with HCl to produce hydro- gen gas. What is the temperature of H2 if the hydrogen gas collected occupies 14.1 L at 9.72 atm and was produced upon reaction of 4.51 moles of Al? Assume the yield of the reaction is 65.0 percent. 1. 891 K 2. 528 K 3. 763 K 4. 247 K 5. 161 K 6. 379 K 7. 119 K What is the correct order of increasing den- sity? The temperature and pressure are same for all three samples. 1. NH3, N2, NO2 2. NO2, N2, NH3 3. N2, NH3, NO2 4. NO2, NH3, N2 5. N2, NO2, NH3 If 3.32 liters of ammonia react with an excess of oxygen at 500 C and 3 atm pressure, 4NH3(g) + 5O2(g) ! 4NO(g) + 6H2O(g) what volume of steam will be produced at the same temperature and pressure? 1. 3.735 L 2. 2.49 L 3. 6.225 L 4. 4.98 L 5. 7.47 L |
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