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Ideal Gas Law Molar Mass Solutions Library

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Ideal Gas Law Molar Mass

Q. Calculate the molar mass of a gas if 2.50 g occupies 0.875 L at 685 Torr and 35°C.(a) 0.106 g/mole (b) 28.1 g/mole (c) 9.12 g/mole(d) 32.0 g/mole (...

Solved • Oct 18, 2019

Ideal Gas Law Molar Mass

Q. A student adds 0.1727 g of an unknown gas to a 125-mL flask. The pressure of this gas sample is found to be 0.833 atm at 20.0 °C. Is the gas likely...

Solved • Oct 3, 2019

Ideal Gas Law Molar Mass

Q. In the Dumas-bulb technique for determining the molar mass of an unknown liquid, you vaporize the sample of a liquid that boils below 100 oC in a b...

Solved • Oct 31, 2018

Ideal Gas Law Molar Mass

Q. Suppose you are given two 1-L flasks and told that one contains a gas of molar mass 30, the other a gas of molar mass 60, both at the same temperat...

Solved • Oct 31, 2018

Ideal Gas Law Molar Mass

Q. Suppose you are given two flasks at the same temperature, one of volume 2  L and the other of volume 3 L. The 2-L flask contains 4.8 g of gas, and ...

Solved • Oct 31, 2018

Ideal Gas Law Molar Mass

Q. An experiment shows that a 248 -mL gas sample has a mass of 0.434 g at a pressure of 747 mm Hg and a temperature of 28 oC.What is the molar mass of...

Solved • Oct 31, 2018

Ideal Gas Law Molar Mass

Q. A sample of gas has a mass of 38.8 mg . Its volume is 226 mL at a temperature of 56 oC and a pressure of 860 torr .Find the molar mass of the gas.

Solved • Oct 31, 2018

Ideal Gas Law Molar Mass

Q. An ingot of silver (Ag) has a mass of 0.0250 kg. What is the mass in pounds? (11b = 453.6 g) 

Solved • Oct 24, 2018

Ideal Gas Law Molar Mass

Q. Part AConsider the following chemical reaction: 2H2O(l) → 2H2(g) + O2(g) What mass of H2O is required to form 1.5 L of O2 at a temperature of 295 K...

Solved • Oct 24, 2018

Ideal Gas Law Molar Mass

Q. Part AA sample of gas has a mass of 827 mg. Its volume is 0.270 L at a temperature of 88°C and a pressure of 975 mmHg. Find its molar mass. Express...

Solved • Oct 24, 2018

Ideal Gas Law Molar Mass

Q. A piece of dry ice (solid carbon dioxide) with a mass of 31.5 g is allowed to sublime (convert from solid to gas) into a large balloon. Part AAssum...

Solved • Oct 24, 2018

Ideal Gas Law Molar Mass

Q. 1.95 g of an unknown gas at 41°C and 1.05 atm is stored in a 2.55-L flask. What is the density of the gas? What is the molar mass of the gas? 

Solved • Oct 23, 2018

Ideal Gas Law Molar Mass

Q. A compound has the empirical formula CHCl. A 256-mL flask, at 373 K and 750. torr, contains 0.800 g of the gaseouscompound. Give the molecular form...

Solved • Oct 18, 2018

Ideal Gas Law Molar Mass

Q. Consider this question: What is the molecular formula of a compound that contains 39% C, 45% N, and 16% H if 0.157 g of the compound occupies 125 m...

Solved • Oct 17, 2018

Ideal Gas Law Molar Mass

Q. What is the molar mass of a gas if 0.0494 g of the gas occupies a volume of 0.100 L at a temperature 26 °C and a pressure of 307 torr?

Solved • Oct 17, 2018

Ideal Gas Law Molar Mass

Q. A gas mixture with a total pressure of 700 mmHg contains each of the following gases at the indicated partial pressure: 126 mmHg CO2, 220 mmHg Ar a...

Solved • Oct 5, 2018

Ideal Gas Law Molar Mass

Q. A wine-dispensing system uses argon canisters to pressurize and preserve wine in the bottle. An argon canister for the system has a volume of 56.8 ...

Solved • Oct 5, 2018

Ideal Gas Law Molar Mass

Q. A sample of argon gas collected at a pressure of 626 mm Hg and a temperature of 287 K has a mass of 28.1 grams. The volume of the sample is ____ L.

Solved • Aug 9, 2018

Ideal Gas Law Molar Mass

Q. A 5.00 L glass bulb with a mass of 1254.49 g is filled with an uknown gas until the pressure is 774 Torr at a temperature of 24.5°C, The mass of bu...

Solved • Jul 31, 2018

Ideal Gas Law Molar Mass

Q. 3.95 g of an unknown gas at 75°C and 1.05 atm is stored in a 2.55-L flask. What is the density of the gas? What is the molar mass of the gas?

Solved • Jul 25, 2018

Ideal Gas Law Molar Mass

Q. Part AWhat is the volume occupied by 13.6 g of argon gas at a pressure of 1.01 atm and a temperature of 379 K? Express your answer with the appropr...

Solved • Jul 24, 2018

Ideal Gas Law Molar Mass

Q. Part AWhat is the mole fraction of oxygen gas in air (see table 5.3 in the textbook)? Part BWhat volume of air contains 12.1 g of oxygen gas at 273...

Solved • Jul 24, 2018

Ideal Gas Law Molar Mass

Q. An experiment shows that a 114 mL gas sample has a mass of 0.171 g at a pressure of 726 mmHg and a temperature of 34°C. What is the molar mass of t...

Solved • Jul 24, 2018

Ideal Gas Law Molar Mass

Q. 1.05g of an unknown gas at 31°C and 1.05 atm is stored in a 2.45-L flask.What is the density of the gas?What is the molar mass of the gas? 

Solved • Jul 24, 2018

Ideal Gas Law Molar Mass

Q. A sample of gas has a mass of 38.9 mg. Its volume is 224 mL at a temperature of 53°C and a pressure of 862 torr.Find the molar mass of the gas.

Solved • Jul 16, 2018

Ideal Gas Law Molar Mass

Q. A 1.00-L sample of a gas at STP has a mass of 1.1599999999999999 g. The molar mass of the gas is a. 26 g/mol. b. 22.399999999999999 g/mol. c. 44.79...

Solved • Jul 16, 2018

Ideal Gas Law Molar Mass

Q. If 0.81 g of a gas occupies 216 mL at 23°C and 627 mmHg of pressure, what is the molar mass of the gas?

Solved • Jul 16, 2018

Ideal Gas Law Molar Mass

Q. A sample of a gas weighs 3.468 g and has a volume of 1090.0 mL at 995.0 torr and 37.0°C, what is its molar mass? 

Solved • Jul 9, 2018

Ideal Gas Law Molar Mass

Q. What is the molar mass of a gas with a density of 2.875 g/L at 753.5 mm Hg and 11°C? 

Solved • Jul 9, 2018

Ideal Gas Law Molar Mass

Q. An experiment shows that a 105 mL gas sample has a mass of 0.181 g at a pressure of 717 mm Hg and a temperature of 30°C. What is the molar mass of ...

Solved • Jul 3, 2018

Ideal Gas Law Molar Mass

Q. 1.35 g of an unknown gas at 53°C and 1.10 atm is stored in a 1.85-L flask. What is the density of the gas? What is the molar mass of the gas? 

Solved • Jul 2, 2018

Ideal Gas Law Molar Mass

Q. 1.65 g of an unknown gas at 49°C and 1.10 atm is stored in a 1.45-L flask.What is the density of the gas?What is the molar mass of the gas? 

Solved • Jul 2, 2018

Ideal Gas Law Molar Mass

Q. A gas mixture is made by combining 8.3 g of Ar, Ne, and an unknown diatomic gas. At STP, the mixture volume of 20.50 L. Identify the unknown gas. W...

Solved • Jun 25, 2018

Ideal Gas Law Molar Mass

Q. A 21.7 g sample of nitrogen. N2, has a volume of 50.0 L and a pressure of 650. mmHg.What is the temperature of the gas in Kelvins? Express your ans...

Solved • Jun 25, 2018

Ideal Gas Law Molar Mass

Q. Laparoscopic surgery involves inflating the abdomen with carbon dioxide gas to separate the internal organs and the abdominal wall. If the CO2 inje...

Solved • Jun 25, 2018

Ideal Gas Law Molar Mass

Q. A sample of gas has a mass of 827 mg. Its volume is 0.270 L at a temperature of 88°C and a pressure of 975 mmHg. Find its molar mass. Express the m...

Solved • Jun 19, 2018

Ideal Gas Law Molar Mass

Q. What is the volume occupied by 14.0 g of argon gas at a pressure of 1.10 atm and a temperature of 349 K?

Solved • Jun 19, 2018

Ideal Gas Law Molar Mass

Q. At STP, 0.278 L of a gas weighs 0.403 g. Calculate the molar mass of the gas. M = _______ g/mol

Solved • Jun 19, 2018

Ideal Gas Law Molar Mass

Q. A 7.50 g sample of an unknown gas exerts a pressure of 1.15 atm in a 2.00 L container at 306.0 K. What is the molar mass of this gas? 

Solved • Jun 8, 2018

Ideal Gas Law Molar Mass

Q. A sample of a gas weighs 2.228 g and has a volume of 810.0 mL at 985.0 torr and 33.0°C. What is its molar mass?

Solved • Jun 5, 2018

Ideal Gas Law Molar Mass

Q. Enter your answer in the provided box.Calculate the molar mass of a gas at 546 torr and 67 °C if 206 ng occupies 0.206  µL. 

Solved • May 30, 2018

Ideal Gas Law Molar Mass

Q. A sample of a gas weighs 3.422 g and has a volume of 950.0 mL at 965.0 torr and 40.0°C. What is its molar mass?

Solved • May 27, 2018

Ideal Gas Law Molar Mass

Q. 1.95 g of an unknown gas at 23 ° C and 1.00 atm is stored in a 2.55 - L flask. What is the density of the gas? What is the molar mass of the gas?

Solved • May 27, 2018

Ideal Gas Law Molar Mass

Q. A sample of a gas weighs 3.000 g and has a volume of 870 0 mL at 625.0 torr and 27.0 °C. What is its molar mass?

Solved • May 27, 2018

Ideal Gas Law Molar Mass

Q. A certain hydrate has the formula MgSO4•xH2O. A quantity of 54.2 g of the compound is heated in an oven to drive off the water. If the steam genera...

Solved • May 27, 2018

Ideal Gas Law Molar Mass

Q. A 1.11 gram sample of an unknown gas is found to occupy a volume of 0.820 L at a pressure of 415 mm Hg and a temperature of 54 °C. The molecular we...

Solved • May 25, 2018

Ideal Gas Law Molar Mass

Q. A 2.45 gram sample of an unknown gas is found to occupy volume of 2.43 L at a pressure of 403 mmHg and a temperature of 43oC. The molecular weight ...

Solved • May 25, 2018

Ideal Gas Law Molar Mass

Q. 0.413 g of a gas fills a 250.0 mL flask and exerts an pressure of 0.996 atm at 21 ° C. What is the molar mass of the gas? Express your answer in un...

Solved • May 21, 2018

Ideal Gas Law Molar Mass

Q. Calculate the volume occupied by 35.2 g of methane gas (CH4) at 25 ºC and 1.0 atm. R = 0.082060.0186 L. 4.5 L 11.2 L 49.2 L 53.7 L

Solved • May 16, 2018

Ideal Gas Law Molar Mass

Q. To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.9-L bulb, then filled it with the gas at...

Solved • Mar 22, 2018

Ideal Gas Law Molar Mass

Q. An unknown gas contained in a 1.85 L flask is weighed and found to have a mass of 15.87 g at a pressure of 2.45 atm and a temperature of 18.6°C. Wh...

Solved • Aug 24, 2016

Ideal Gas Law Molar Mass

Q. A gaseous hydrogen and carbon containing compound is decomposed and found to contain 85.63% C and 14.37% H by mass. The mass of 258 mL of the gas, ...

Solved • Jun 3, 2016

Ideal Gas Law Molar Mass

Q. The mass of an evacuated 255-mL flask is 143.187 g. The mass of the flask filled with 267 torr of an unknown gas at 25 °C is 143.289 g. Calculate t...

Solved • Jun 3, 2016

Ideal Gas Law Molar Mass

Q. A sample of gas has a mass of 0.555 g. Its volume is 117 ml at a temperature of 85 °C and a pressure of 753 mmHg. Find the molar mass of the gas. 

Solved • Jun 3, 2016

Ideal Gas Law Molar Mass

Q. An experiment shows that a 113-mL gas sample has a mass of 0.171 g at a pressure of 721 mmHg and a temperature of 32°C. What is the molar mass of t...

Solved • Jun 3, 2016

Ideal Gas Law Molar Mass

Q. What is the molar mass of an ideal gas if a 0.622 g sample of this gas occupies a volume of 300. mL at 35°C and 789 mm Hg?a) 44.8 g•mol –1b) 48.9 g...

Solved • Apr 26, 2016

Ideal Gas Law Molar Mass

Q. An 84.0 g sample of an unknown gas occupies 60.8 L at 23°C and 1.2 atm. What is the molar mass of the gas in g/mol? a) 28.0 b) 32.0 c) 38.0 d) ...

Solved • Mar 11, 2016

Ideal Gas Law Molar Mass

Q. We fill a balloon weighing 1.2 g to a volume of 1.56 L with an unknown gas at 23 °C at 1 atm pressure. The mass of the filled balloon is 7.11 g. Wh...

Solved • Feb 19, 2016

Ideal Gas Law Molar Mass

Q. When an evacuated 63.8 mL glass bulb is filled with a gas at 22ºC and 747 mm Hg, the bulb gains 0.1035 g in mass. What is the gas? a. O2 b. Xe c...

Solved • Feb 12, 2016