Question 46 1 pts How many moles of gas are contained in 890.0 mL at 21.0°C...
QUESTION 2 What amount (in moles) of a gas is contained in 40.4 L at-82.4 °C with a pressure of 527.4 mm Hg? QUESTION 3 A flask is filled with 1.03 moles of a gas at 13.4 K and 618.9 mm Hg. The flask is then opened and an additional 1.84 moles are added. The temperature of the flask is then changed to 172.9 K. What is the pressure (in atm) of the flask under these final conditions? QUESTION 4...
How many.moles.of gas are contained in 1000 mL at 10 °C and a pressure of 350 mm Hg? 3. a) 0.010 mol b) 0.060 mol c) 0.020 mol d) 4.26 x 10 mol What is the molecular weight of a gas that exerts a pressure of 1671.4 mm of Hg at 27 °C and 4. has a density of 1.25 g/mL? a) 20.1 g/mol b) 14.0 g/mol c) 39.9 g/mol d) 65.2 g/mol 4ca o 32 wgm 5. What is...
A sample of gas is contained in a 245 mL flask at a temperature of 23.5°C. The gas pressure is 37.4 mm Hg. The gas is moved to a new flask, which is then immersed in ice water, and which has a volume of 60 mL. What is the pressure of the gas in the smaller flask at the new temperature? _______ mmHg
Exercise 6.4 • How many moles of gas will occupy a 750 ml volume at 25°C and 0.42 atm pressure? . 2 If the argon gas in a light bulb exerts a pressure of 0.54 atm at 20°C. what pressure will it exert at 160°C? 3 What is the molar mass of a gas if 0.21 g occupies a 0.13 liter volume at 80°C and 0.92 atm pressure? - How many grams of ammonia gas, NH,, are there in a...
1. Convert 895 mm Hg to atm. 2. If a gas hasa volume of 265 mL at 23°C, what will the volume of that gas be at 46° C and the same pressure?
6. A 120 L container contains 0,750 moles of gas at 23°C. What is the pressure of the gas? (6 pts.) 212 ?L-12 296 7. A gas mixture contains 225 mm Hg N, 312 mm Hg H, and 219 mm Hg 03 a) What is the total pressure of the gas mixture? (5 pts.) PN2X +PH2 + Poz-225+ 3127 'Hz & Poz=225+ 312 1219 mmHg = 756 mmity b) If the mixture is in a 110 liter container at 315...
Question 1 10 pts Consider the general chemical equation: A+2B3 C How many moles of C are produced from 1 mol of A? o 2 3 10 pts D Question 2 Given the decomposition of hydrogen peroxide, calculate the moles of oxygen gas produced from 5.00 mol of H202 2 H2020) 2 H20) 028) 1 mol 2.5 mol 5 mol 10 mol 10 pts DQuestion 3 How many moles of propane gas, C3Ha. react with 1.29 mol of oxygen gas?...
of NH; gas? 37. How many moles of O, are contained in 5.25 L at 26°C and 1.2 atm? JUAL 39 D 1.. CH.? 38. How many moles 752 torr?
4 pts Question 13 moles. The number of moles of gas in a 45.0L container at 25.0°C and 500.0 mm Hg is
During an experiment performed at 30.0 °C and 770 mm Hg, 525 mL of hydrogen gas is collected in a pneumatic trough. If the partial pressure of water at the test temperature was 31.8 mm Hg, how many moles of hydrogen was collected?