Question 10 At 1000°C and 10.0 Torr, the density of a certain element in the gas...
128 g of an unknown monatomic gas phase element has just been released into a container of volume 77.26 L at a pressure of 1.0078 atm. If the temperature of the room is 23.0°C, what are the molar mass and the identity of the gas? What is the density (in g/L) of ethane gas at 743 torr and 14.8°C? The unrounded molar mass of ethane is 30.068 g/mol.
6. a. Calculate the density of sulfur hexafluoride gas at 709 torr and 23 C. b. Calculate the molar mass of a vapor that has a density of 7.125 g/L at 11 ∘C and 745 torr . c. Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s)+2H2O(l)→Ca(OH)2(aq)+2H2(g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed...
Part A- Calculate the density of sulfur hexafluoride gas at 704 torr and 21 ∘C. Part B- Calculate the molar mass of a vapor that has a density of 7.125 g/L at 12 ∘C and 744 torr .
10. The valve between the 2.00-L bulb, in which the gas pressure is 1.80 atm, and the 3.00-L bulb, in which the gas pressure is 3.00 atm, is opened. What is the final pressure in the two bulbs, the temperature remaining constant? (8 pts) 3.00 L 2.00 L g/L 11. At 1000°C and 10 torr, the density of a certain element in the gaseous state is 29x10 Circle the element that is most likely the gas below. (6 pts) A)...
at 25 °C of the gas. 5. The density of a gas 305 Torr, Calcuiate the moiar mass is .940 9/L and
Gas Density 3. What is the density of dinitrogen tetroxide gas at 15°C and 835 torr?
QUESTION 10 A certain ideal gas exerts a pressure of 864.1 torr in a vessel with a volume of 576.0 mL. If the volume is reduced to 4122 m, what is the resulting pressure anume no change in temperature)? O A. 417 torr B. 618 torr OC. 275 torr D. 1208 torr OE. 0.813 atm
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Calculate the density of sulfur hexafluoride gas at 709 torr and 20 degree C. Express the density in grams per liter to three significant digits. d = g/L
question 5.77
5.77 A sample of argon (Ar) gas occupies 65.0 mL at 22'C 750 torr. What is the volume of this Ar and gas sample at STP 5.78 A sample of 02 gas occupies 257 mL at 20°C and 1.20 atm of this O at STP? 570 Calculate the pressure, in atmosphere, of 7.0mof a monoxide stored in a 30.0-1..container at 65 5.71 Calculate the volume of 44.0 g of cartbo on at STP Calculate the volume of 44.0...
The volume of a gas is 36.0 ml at 10.0 degree C and 4.50 atm. At What temperature (degree C) will the gas have a pressure of 3.50 atm and a volume of 85.0 mL? 623 degree C 220 degree C 77.7 degree C 896 degree C 246 degree C A 125-mL tank is filled with O_2 gas until the pressure is 75.0 atm at 25 degree C. Calculate the moles of oxygen in the tank. 4.57 0.00378 0.505 0.383...