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11. A 0.125 g sample of an unknown gas at 286 K occupies a volume of...
a. What is the molecular weight of 3.7 g of an unknown gas that occupies 450 mL at 20.0°C and 2.0 atm? The value of R 0.0821 L atm mol K-1 b. Aluminum and oxygen react to form aluminum oxide. How many L of oxygen at 296 K and 1.4 atm of pressure are necessary to form 3.25 g of aluminum oxide?
A flask with a volume of 3.16 L contains 9.33 g of an unknown gas at 32.0°C and 1.00 atm. What is the molar mass of the gas? (R = 0.08206 L • atm/K • mol) Multiple Choice 18 Ο 776 g/mol Ο 144 g/mol Ο 66.1 g/mol Ο 739 g/mol Ο 81.4 g/mol
a .334 g sample of an unknown gas occupies 109 ml at 398 K and 1.41 atm. identify the gas.
A sample of gas of mass 1.58 g occupies a volume of 472 mL at 55 °C and 0.92 atm pressure. What is the molar mass of the gas? VALD ? g/mol
A sample of gas of mass 2.14 g occupies a volume of 464 mL at 49 °C and 0.61 atm pressure. What is the molar mass of the gas? |ν ΑΣφ ? g/mol Submit Request Answer
A sample of argon gas at 303 K and 2.25 atm occupies a volume of 2.65 L. If the gas is allowed to expand to a larger volume, while at the same time it is cooled to a lower temperature, the final gas pressure will be higher than 2.25 atm could be higher or lower than 2.25 atm depending on the final volume and temperature. will be lower than 2.25 atm A sample of oxygen gas at 301 K and...
A 0.179 g sample of an unknown diatomic gas occupies 109 mL at 398 K and 1.41 atm. What is the identity of the diatomic gas? F2 02 H2 N2 Cl2
Part A A sample of gas of mass 3.90 g occupies a volume of 728 mL at 37 °C and 1.97 atm pressure. What is the molar mass of the gas? IVO AEQ O 2 ? g/mol Submit Request Answer
Question 10 of 22 A 4.05 g sample of an unknown gas at 35 °C and 1.05 atm is stored in a 2.15 L flask. What is the density of the gas? density: 1.88372 g/L What is the molar mass of the gas? molar mass: g/mol Incorrect Question 14 of 22 A gas mixture is made by combining 6.7 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 15.14 L. What...
A 2.43 gram sample of an unknown gas is found to occupy a volume of 2.03 L at a pressure of 506 mm Hg and a temperature of 39°C. The molecular weight of the unknown gas is g/mol