Question 29 6 pts A sample of air at a pressure of 1.25 atm is found...
A 50.0 mL sample of a gas was found to have a pressure of l.0 atm at 25 degree C. What will be the new volume if the temperature is changed to 50 degree C at constant pressure? A 2.00 L sample of Nitrogen gas at 25.0 degree C was found to have a pressure of 1.00 atm. How many moles of gas are present and what is the mass of the gas in grams? The total pressure in a...
4. A sample of oxygen gas has a volume of 6.42 L at 29°C and 900.0 torr. How many oxygen molecules does it contain? (8 pts) 5. A 4.78 L sample of carbon dioxide is collected at 75°C and 0.902 atm. What volume will the gas occupy at 1.05 atm and 20°C? (6 pts) 6. Calculate the density of 1 mole of nitrogen gas at STP. (6 pts)
(6 pts.) 1. The air pressure in the inner tube of a tire on a typical racing bike is held at a pressure of 115 psi (pounds per square inch). Convert this pressure to atm and mm Hg. (3 pts. each) 2. The atmospheric pressure is 0.975 atm. Determine the pressure of the enclosed gas in each of the cases depicted below. 80 47 mm mm Gas Gas (6 pts.) 3. A 4.00 L flask contains 9.00 g of Ne...
The partial pressure of carbon dioxide in air is approximately 10^-3.42 atm. In temperate regions the pressure of CO2 in gas can be as high as 10^-1.5 atm. For each of these two cases, calculate the mass of carbon dioxide (in grams) in 1.0 m^3 of gas at 25 Celsius.
An air sample in the lungs contain oxygen at 93 mm Hg, nitrogen at 565 mm Hg, carbon dioxide at 38 mm Hg and water vapor at 47 mm Hg. What is the total pressure in atmospheres, exerted by the gas mixture?
Question 14 Not yet graded/2 pts A gas with a volume of 50 mL when pressure is 15 atm and the temperature is 298K. What is the pressure when the gas increased to 150 mL at 298K? Your Answer: 5 atm Question 15 Not yet gra led/5 pts Free Response Calculate the moles of carbon dioxide produced at 22°C and 3 psi when 1.41 g of calcium carbonate reacts with 15.0 mL of 2M hydrochloric acid. Your Answer: 0.123 L
0/2 pts Incorrect Question 8 What is the term for the pressure exerted by gas molecules in the air? Vapor pressure Partical pressure Barometric pressure Gas pressure Not yet graded/5 p Question 15 Free Response Calculate the moles of carbon dioxide produced at 22°C and 3 psi when 1.41 g of calcium carbonate reacts with 15.0 mL of 2M hydrochloric acid. Your Answer: 0.123 L
1- A sample of carbon dioxide gas at a pressure of 1.03 atm and a temperature of 210 °C, occupies a volume of 546 mL. If the gas is cooled at constant pressure until its volume is 443 mL, the temperature of the gas sample will be ______ °C. 2- A sample of nitrogen gas at a pressure of 831 mm Hg and a temperature of 81 °C, occupies a volume of 6.66 liters. If the gas is heated at...
A sample of carbon dioxide gas has a pressure of 1.89 atm and a volume of 21.5 mL at a temperature of 76.2 ℃. How many molecules of carbon dioxide gas are in the sample? a) 0.0142 b) 8.54 × 1020 c) 8.54 × 1023 d) 70.7 e) 4.26 × 1025
A sample of carbon dioxide gas at a pressure of 1.16 atm and a temperature of 221 °C, occupies a volume of 568 ml. If the gas is heated at constant pressure until its volume is 816 ml., the temperature of the gas sample will be Submit Answer Retry Entire Group 6 more group attempts remaining A helium-filled weather balloon has a volume of 774 L at 16.9°C and 754 mmHg. It is released and rises to an altitude of...