The best laboratory vacuum has a pressure of about 1.00 x 10-18 atm, or 1.01 x...
The best laboratory vacuum has a pressure of about 1.00 x 10-18 atm, or 1.01 x 10-13 Pa. How many gas molecules are in 7.67 cm3 in such a vacuum at 296 K?
The lowest pressure attainable using the best available vacuum techniques is about 10−12N/m2. At such a pressure, how many molecules are there per cm3 at 3 ∘C?
The lowest pressure attainable using the best available vacuum techniques is about 10−12N/m2. 1. At such a pressure, how many molecules are there per cm3 at 11 ∘C? Express your answer using two significant figures.
The best laboratory vacuum apparatus can evacuate a vessel to 1.0 x 10 molecules per L of gas. At 25°C, the pressure (kPa) in such an evacuated vessel will be O A.2.5 x 10-6 OB. 1.0 x 10-6 O c.4.1 x 10-15 OD. 1.7 x 10-18 E. 3.4 x 10-18 Reset Selection
A sample of neon gas collected at a pressure of 1.01 atm and a temperature of 285 K is found to occupy a volume of 856milliliters. How many moles of Ne gas are in the sample?___?__ mol
(a) An ideal gas occupies a volume of 1.8 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. _____________ molecules (b) If the pressure of the 1.8-cm3 volume is reduced to 2.4 ✕ 10−11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container? ____________ mol
(a) An ideal gas occupies a volume of 2.6-cm3 at 20�C and atmospheric pressure. Determine the number of molecules of gas in the container.__________ molecules (b) If the pressure of the 2.6-cm3 volume is reduced to 1.6 ? 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?_________molecules
(a) An ideal gas occupies a volume of 1.2 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. __ moleculues (b) If the pressure of the 1.2-cm3 volume is reduced to 1.6 ✕ 10−11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container? __ mol
The lowest pressures readily attainable in the laboratory are of the order of 10^(-13) atm. At this pressure and ordinary temperature (say T=350K), how many molecules are present in a volume of 1cm^3
A sample of an ideal gas has a volume of 2.36 L at 279 K and 1.01 atm. Calculate the pressure when the volume is 1.26 L and the temperature is 298 K