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17 Nov 2019
On a certain day the barometer in a laboratory indicates that the atmospheric pressure is 765 mm Hg. A sample of gas is placed in flask and attached to an open ended mercury manometer. If difference in the mercury levels in the manometer is 25 cm, what is the pressure of the gas in atmospheres? 79 mm Hg 1015 mm Hg 0.974 atm 1.039 atm None of the above The next two questions use the following figure. Balloon B is observed to loose gas at a rate of 2.0 times 10^-4 mol/hr. Find the rate at which balloon A will lose gas. 4.67 times 10^3 mol/hr 2.14 times 10^-4 mol/hr 0.935 mol/hr 1.87 times 10^-4 mol/hr 1.75 times 10^-4 mol/hr The valve on bottle A is opened to fill the balloon. The total volume V_total = 0.697 L(V_total = V_ballon + V_total), the volume of the bottle is 0.425 L and T = 17 degree C. The temperature is increased to 30 degree C. What is the volume of the balloon at 30 degree C? 1.23 L 0.728 L 0.444 L 0.303 L 0.272 L
On a certain day the barometer in a laboratory indicates that the atmospheric pressure is 765 mm Hg. A sample of gas is placed in flask and attached to an open ended mercury manometer. If difference in the mercury levels in the manometer is 25 cm, what is the pressure of the gas in atmospheres? 79 mm Hg 1015 mm Hg 0.974 atm 1.039 atm None of the above The next two questions use the following figure. Balloon B is observed to loose gas at a rate of 2.0 times 10^-4 mol/hr. Find the rate at which balloon A will lose gas. 4.67 times 10^3 mol/hr 2.14 times 10^-4 mol/hr 0.935 mol/hr 1.87 times 10^-4 mol/hr 1.75 times 10^-4 mol/hr The valve on bottle A is opened to fill the balloon. The total volume V_total = 0.697 L(V_total = V_ballon + V_total), the volume of the bottle is 0.425 L and T = 17 degree C. The temperature is increased to 30 degree C. What is the volume of the balloon at 30 degree C? 1.23 L 0.728 L 0.444 L 0.303 L 0.272 L
Jarrod RobelLv2
13 Feb 2019