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Covert 797 mm Hg to atm.
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- 2. The concentration of of ozone (03) in Beijing on a summer day (P = 101.325 kPa ; T = 30°C) is 125 ppbv. What is the ozone concentration in units of ug/m3?ited .doc C The stopcock connecting a 2.00 L bulb containing nitrogen gas at a pressure of 636 mm Hg, and a 2.00 L bulb containing methane gas at a pressure of 446 mm Hg, is opened and the gases are allowed to mix. Assuming that the temperature remains constant, what is the final pressure in the system? Submit Answer $ 4 R F 95 % Retry Entire Group F5 [Review Topics] [References] Use the References to access important values f needed for this question. T G 6 B MacBook Air Y 9 more group attempts remaining H & 7 U N mm Hg 8 1 M ( 9 K F9 O ) P Previous Email Instructor Next Save and Exit [ Show All 1 X8. The secondary National Ambient Air Quality Standard for SO2 is 0.5 ppm (3-hr average). a) What is the equivalent concentration at 100 degrees C and 1 atm? b) Calculate the equivalent mass concentration (ug/m3) at Standard temperature and pressure. c) What is the equivalent mass concentration at 100 degrees C and 1 atm
- 20.) A 125 mL sampre ol arger gas Chances presSure trom 705 mm Hg to 385 mm ta temp remains conotanct what is firal Volume in iters?(For #5-7) Acetylene (C2H2) is formed by the reaction of water with calcium carbide, according to the following equation: CaC2 (9) + 2 H20 () → Ca(OH)2 (nq) + C2H2 (g) Mr Xiyao was told to prepare 10 L (at STP) of acetylene in the laboratory. 5. How many moles of acetylene should Ms Xiyao produce? A. 0.644 mol B. 0.446 mol C. 0.464 mol D. 4.064 mol 6. How many moles of CaC2 is needed to produce 10 L of acetylene? A. 0.644 mol C. 0.464 mol B. 0.446 mol D. 4.064 mol 7. How many grams of CaC2 must Ms Xiyao prepare? (Molar mass of CaC2 is 64 g/mol) A. 68.2 g В. 62.8 g C. 28.6 g D. 26.8 g (For #8-10) Mr Sang Cheng burned 50 L of acetylene (C2H2) at STP in a constant pressure piston. The piston expanded until the reaction was over. The reaction proceeds: 2 C,H2(g) + 5 O2 (8) → 4 CO2 (2) + 2 H2(8) 8. How many moles of acetylene is available for reaction? A. 2.23 mol B. 3.22 mol C. 3.23 mol D. 3.32 mol 9. Assuming that all of the acetylene reacted, how many moles of CO2 was formed? A. 6.64 mol…AP Classroom Learning Checkp x CD PLSD Student S +
- colle com/course.html?courseld3D169856748OpenVellumHMAC=Da46387336edc299b16e49c591bf9ad36#10001 For Practice 10.5 - Enhanced - with Feedback I Review | Constants | Periodic Table An 8.45 L tire contains 0.532 mol of gas at a temperature of 320 K. You may want to reference (Pages 425 - 430) Section 10.5 while completing this problem. Part A What is the pressure (in atm) of the gas in the tire? Express the pressure to three significant figures and include the appropriate units. HA ? Value Units Submit Request Answer Next > Provide Feedback P Pearson 11:17 AM A a O (x a 12/10/2021 75°F Partly sunny arch BHJC04Z022B01 E7 O010ahotmai) com 远A 2.85-L flexible flask at 13degrees celsius contains a micture of N2, He and Ne at partial pressures of 0.333atm for N2, 0.121atm for He, and 0.455atm for Ne a) calculate the total pressure of the mixture _____atm b)Calculate the volume in liters at STP occupied by He and Ne if the N2 is removed selectively ____LPrepare 1000ppm of Cd (NO3).4 H2O in a liter, then preprare from the 1000ppm(which is a stock) 100ppm in 500ml
- demic Upgrading Chemistry 20 2. Magnesium was added to hydrochloric acid, HCI (aq), and produced 5.25 L of H₂ (g) at a temperature of 325 K and a pressure of 100 kPa. Mg(s) + 2 HCI (aq) → MgCl₂ (aq) + H₂(g) What mass of Mg was used in this single replacement reaction?om.google.com/u/1/w/Mzg1MzgyNTkwMDQy/t/all Partial Pressure Assessment 85. Consider the flasks in the following diagram. What are the fi- nal partial pressures of H, and N, after the stopcock between the two flasks is opened? (Assume the final volume is 3.00 L.) What is the total pressure (in torr)? 2.00 L H- 1.00 L N, 475 torr 0.200 atm. (1 atm- 760 torr) Page6-partial pressure